diff --git a/ptml/ptml.g4 b/ptml/ptml.g4
index bef9102..105b473 100644
--- a/ptml/ptml.g4
+++ b/ptml/ptml.g4
@@ -1,6 +1,20 @@
 grammar ptml;
 
-tree    : internal_node (Names|tree)+
-        ;
-internal_node : 'sequence' | 'selector' | 'parallel' | 'decorator';
-Names : [a-zA-Z_][a-zA-Z_0-9]* ;
\ No newline at end of file
+tree    		: internal_node ':' (action_sign|tree)+ EOF;
+internal_node   : 'sequence' | 'selector' | 'parallel' Integer | 'decorator' ;
+action_sign     : 'act' Names '(' action_parm? ')';
+action_parm     : (var_decls|Integer|Float|boolean) (',' (var_decls|Integer|Float|boolean))* ;
+var_decls		: var_type Names ;
+var_type		: 'int' | 'float' | 'bool' | 'string' ;
+boolean         : 'True' | 'False' ;
+
+Names 			: [a-zA-Z_][a-zA-Z_0-9]* ;
+Integer         : '-'?[1-9][0-9]* | '0' ;
+Float           : [0-9]+'.'[0-9]* | '.'[0-9]+ ;
+
+
+
+// comments
+LINE_COMMENT    : '//' .*? '\r'?'\n' -> skip ;
+// useless
+WS				: [ \t\u000C\r\n]+ -> skip ;
diff --git a/ptml/ptml.interp b/ptml/ptml.interp
index ee71f8c..78b8fe7 100644
--- a/ptml/ptml.interp
+++ b/ptml/ptml.interp
@@ -1,9 +1,24 @@
 token literal names:
 null
+':'
 'sequence'
 'selector'
 'parallel'
 'decorator'
+'act'
+'('
+')'
+','
+'int'
+'float'
+'bool'
+'string'
+'True'
+'False'
+null
+null
+null
+null
 null
 
 token symbolic names:
@@ -12,12 +27,32 @@ null
 null
 null
 null
+null
+null
+null
+null
+null
+null
+null
+null
+null
+null
+null
 Names
+Integer
+Float
+LINE_COMMENT
+WS
 
 rule names:
 tree
 internal_node
+action_sign
+action_parm
+var_decls
+var_type
+boolean
 
 
 atn:
-[4, 1, 5, 14, 2, 0, 7, 0, 2, 1, 7, 1, 1, 0, 1, 0, 1, 0, 4, 0, 8, 8, 0, 11, 0, 12, 0, 9, 1, 1, 1, 1, 1, 1, 0, 0, 2, 0, 2, 0, 1, 1, 0, 1, 4, 13, 0, 4, 1, 0, 0, 0, 2, 11, 1, 0, 0, 0, 4, 7, 3, 2, 1, 0, 5, 8, 5, 5, 0, 0, 6, 8, 3, 0, 0, 0, 7, 5, 1, 0, 0, 0, 7, 6, 1, 0, 0, 0, 8, 9, 1, 0, 0, 0, 9, 7, 1, 0, 0, 0, 9, 10, 1, 0, 0, 0, 10, 1, 1, 0, 0, 0, 11, 12, 7, 0, 0, 0, 12, 3, 1, 0, 0, 0, 2, 7, 9]
\ No newline at end of file
+[4, 1, 20, 65, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7, 4, 2, 5, 7, 5, 2, 6, 7, 6, 1, 0, 1, 0, 1, 0, 1, 0, 4, 0, 19, 8, 0, 11, 0, 12, 0, 20, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 30, 8, 1, 1, 2, 1, 2, 1, 2, 1, 2, 3, 2, 36, 8, 2, 1, 2, 1, 2, 1, 3, 1, 3, 1, 3, 1, 3, 3, 3, 44, 8, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 3, 3, 51, 8, 3, 5, 3, 53, 8, 3, 10, 3, 12, 3, 56, 9, 3, 1, 4, 1, 4, 1, 4, 1, 5, 1, 5, 1, 6, 1, 6, 1, 6, 0, 0, 7, 0, 2, 4, 6, 8, 10, 12, 0, 2, 1, 0, 10, 13, 1, 0, 14, 15, 70, 0, 14, 1, 0, 0, 0, 2, 29, 1, 0, 0, 0, 4, 31, 1, 0, 0, 0, 6, 43, 1, 0, 0, 0, 8, 57, 1, 0, 0, 0, 10, 60, 1, 0, 0, 0, 12, 62, 1, 0, 0, 0, 14, 15, 3, 2, 1, 0, 15, 18, 5, 1, 0, 0, 16, 19, 3, 4, 2, 0, 17, 19, 3, 0, 0, 0, 18, 16, 1, 0, 0, 0, 18, 17, 1, 0, 0, 0, 19, 20, 1, 0, 0, 0, 20, 18, 1, 0, 0, 0, 20, 21, 1, 0, 0, 0, 21, 22, 1, 0, 0, 0, 22, 23, 5, 0, 0, 1, 23, 1, 1, 0, 0, 0, 24, 30, 5, 2, 0, 0, 25, 30, 5, 3, 0, 0, 26, 27, 5, 4, 0, 0, 27, 30, 5, 17, 0, 0, 28, 30, 5, 5, 0, 0, 29, 24, 1, 0, 0, 0, 29, 25, 1, 0, 0, 0, 29, 26, 1, 0, 0, 0, 29, 28, 1, 0, 0, 0, 30, 3, 1, 0, 0, 0, 31, 32, 5, 6, 0, 0, 32, 33, 5, 16, 0, 0, 33, 35, 5, 7, 0, 0, 34, 36, 3, 6, 3, 0, 35, 34, 1, 0, 0, 0, 35, 36, 1, 0, 0, 0, 36, 37, 1, 0, 0, 0, 37, 38, 5, 8, 0, 0, 38, 5, 1, 0, 0, 0, 39, 44, 3, 8, 4, 0, 40, 44, 5, 17, 0, 0, 41, 44, 5, 18, 0, 0, 42, 44, 3, 12, 6, 0, 43, 39, 1, 0, 0, 0, 43, 40, 1, 0, 0, 0, 43, 41, 1, 0, 0, 0, 43, 42, 1, 0, 0, 0, 44, 54, 1, 0, 0, 0, 45, 50, 5, 9, 0, 0, 46, 51, 3, 8, 4, 0, 47, 51, 5, 17, 0, 0, 48, 51, 5, 18, 0, 0, 49, 51, 3, 12, 6, 0, 50, 46, 1, 0, 0, 0, 50, 47, 1, 0, 0, 0, 50, 48, 1, 0, 0, 0, 50, 49, 1, 0, 0, 0, 51, 53, 1, 0, 0, 0, 52, 45, 1, 0, 0, 0, 53, 56, 1, 0, 0, 0, 54, 52, 1, 0, 0, 0, 54, 55, 1, 0, 0, 0, 55, 7, 1, 0, 0, 0, 56, 54, 1, 0, 0, 0, 57, 58, 3, 10, 5, 0, 58, 59, 5, 16, 0, 0, 59, 9, 1, 0, 0, 0, 60, 61, 7, 0, 0, 0, 61, 11, 1, 0, 0, 0, 62, 63, 7, 1, 0, 0, 63, 13, 1, 0, 0, 0, 7, 18, 20, 29, 35, 43, 50, 54]
\ No newline at end of file
diff --git a/ptml/ptml.tokens b/ptml/ptml.tokens
index 897809e..ce804bb 100644
--- a/ptml/ptml.tokens
+++ b/ptml/ptml.tokens
@@ -2,8 +2,34 @@ T__0=1
 T__1=2
 T__2=3
 T__3=4
-Names=5
-'sequence'=1
-'selector'=2
-'parallel'=3
-'decorator'=4
+T__4=5
+T__5=6
+T__6=7
+T__7=8
+T__8=9
+T__9=10
+T__10=11
+T__11=12
+T__12=13
+T__13=14
+T__14=15
+Names=16
+Integer=17
+Float=18
+LINE_COMMENT=19
+WS=20
+':'=1
+'sequence'=2
+'selector'=3
+'parallel'=4
+'decorator'=5
+'act'=6
+'('=7
+')'=8
+','=9
+'int'=10
+'float'=11
+'bool'=12
+'string'=13
+'True'=14
+'False'=15
diff --git a/ptml/ptmlLexer.interp b/ptml/ptmlLexer.interp
index a9e4a05..1b37f5a 100644
--- a/ptml/ptmlLexer.interp
+++ b/ptml/ptmlLexer.interp
@@ -1,9 +1,24 @@
 token literal names:
 null
+':'
 'sequence'
 'selector'
 'parallel'
 'decorator'
+'act'
+'('
+')'
+','
+'int'
+'float'
+'bool'
+'string'
+'True'
+'False'
+null
+null
+null
+null
 null
 
 token symbolic names:
@@ -12,14 +27,44 @@ null
 null
 null
 null
+null
+null
+null
+null
+null
+null
+null
+null
+null
+null
+null
 Names
+Integer
+Float
+LINE_COMMENT
+WS
 
 rule names:
 T__0
 T__1
 T__2
 T__3
+T__4
+T__5
+T__6
+T__7
+T__8
+T__9
+T__10
+T__11
+T__12
+T__13
+T__14
 Names
+Integer
+Float
+LINE_COMMENT
+WS
 
 channel names:
 DEFAULT_TOKEN_CHANNEL
@@ -29,4 +74,4 @@ mode names:
 DEFAULT_MODE
 
 atn:
-[4, 0, 5, 55, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7, 4, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 4, 1, 4, 5, 4, 51, 8, 4, 10, 4, 12, 4, 54, 9, 4, 0, 0, 5, 1, 1, 3, 2, 5, 3, 7, 4, 9, 5, 1, 0, 2, 3, 0, 65, 90, 95, 95, 97, 122, 4, 0, 48, 57, 65, 90, 95, 95, 97, 122, 55, 0, 1, 1, 0, 0, 0, 0, 3, 1, 0, 0, 0, 0, 5, 1, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0, 9, 1, 0, 0, 0, 1, 11, 1, 0, 0, 0, 3, 20, 1, 0, 0, 0, 5, 29, 1, 0, 0, 0, 7, 38, 1, 0, 0, 0, 9, 48, 1, 0, 0, 0, 11, 12, 5, 115, 0, 0, 12, 13, 5, 101, 0, 0, 13, 14, 5, 113, 0, 0, 14, 15, 5, 117, 0, 0, 15, 16, 5, 101, 0, 0, 16, 17, 5, 110, 0, 0, 17, 18, 5, 99, 0, 0, 18, 19, 5, 101, 0, 0, 19, 2, 1, 0, 0, 0, 20, 21, 5, 115, 0, 0, 21, 22, 5, 101, 0, 0, 22, 23, 5, 108, 0, 0, 23, 24, 5, 101, 0, 0, 24, 25, 5, 99, 0, 0, 25, 26, 5, 116, 0, 0, 26, 27, 5, 111, 0, 0, 27, 28, 5, 114, 0, 0, 28, 4, 1, 0, 0, 0, 29, 30, 5, 112, 0, 0, 30, 31, 5, 97, 0, 0, 31, 32, 5, 114, 0, 0, 32, 33, 5, 97, 0, 0, 33, 34, 5, 108, 0, 0, 34, 35, 5, 108, 0, 0, 35, 36, 5, 101, 0, 0, 36, 37, 5, 108, 0, 0, 37, 6, 1, 0, 0, 0, 38, 39, 5, 100, 0, 0, 39, 40, 5, 101, 0, 0, 40, 41, 5, 99, 0, 0, 41, 42, 5, 111, 0, 0, 42, 43, 5, 114, 0, 0, 43, 44, 5, 97, 0, 0, 44, 45, 5, 116, 0, 0, 45, 46, 5, 111, 0, 0, 46, 47, 5, 114, 0, 0, 47, 8, 1, 0, 0, 0, 48, 52, 7, 0, 0, 0, 49, 51, 7, 1, 0, 0, 50, 49, 1, 0, 0, 0, 51, 54, 1, 0, 0, 0, 52, 50, 1, 0, 0, 0, 52, 53, 1, 0, 0, 0, 53, 10, 1, 0, 0, 0, 54, 52, 1, 0, 0, 0, 2, 0, 52, 0]
\ No newline at end of file
+[4, 0, 20, 186, 6, -1, 2, 0, 7, 0, 2, 1, 7, 1, 2, 2, 7, 2, 2, 3, 7, 3, 2, 4, 7, 4, 2, 5, 7, 5, 2, 6, 7, 6, 2, 7, 7, 7, 2, 8, 7, 8, 2, 9, 7, 9, 2, 10, 7, 10, 2, 11, 7, 11, 2, 12, 7, 12, 2, 13, 7, 13, 2, 14, 7, 14, 2, 15, 7, 15, 2, 16, 7, 16, 2, 17, 7, 17, 2, 18, 7, 18, 2, 19, 7, 19, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 4, 1, 5, 1, 5, 1, 5, 1, 5, 1, 6, 1, 6, 1, 7, 1, 7, 1, 8, 1, 8, 1, 9, 1, 9, 1, 9, 1, 9, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 10, 1, 11, 1, 11, 1, 11, 1, 11, 1, 11, 1, 12, 1, 12, 1, 12, 1, 12, 1, 12, 1, 12, 1, 12, 1, 13, 1, 13, 1, 13, 1, 13, 1, 13, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 14, 1, 15, 1, 15, 5, 15, 126, 8, 15, 10, 15, 12, 15, 129, 9, 15, 1, 16, 3, 16, 132, 8, 16, 1, 16, 1, 16, 5, 16, 136, 8, 16, 10, 16, 12, 16, 139, 9, 16, 1, 16, 3, 16, 142, 8, 16, 1, 17, 4, 17, 145, 8, 17, 11, 17, 12, 17, 146, 1, 17, 1, 17, 5, 17, 151, 8, 17, 10, 17, 12, 17, 154, 9, 17, 1, 17, 1, 17, 4, 17, 158, 8, 17, 11, 17, 12, 17, 159, 3, 17, 162, 8, 17, 1, 18, 1, 18, 1, 18, 1, 18, 5, 18, 168, 8, 18, 10, 18, 12, 18, 171, 9, 18, 1, 18, 3, 18, 174, 8, 18, 1, 18, 1, 18, 1, 18, 1, 18, 1, 19, 4, 19, 181, 8, 19, 11, 19, 12, 19, 182, 1, 19, 1, 19, 1, 169, 0, 20, 1, 1, 3, 2, 5, 3, 7, 4, 9, 5, 11, 6, 13, 7, 15, 8, 17, 9, 19, 10, 21, 11, 23, 12, 25, 13, 27, 14, 29, 15, 31, 16, 33, 17, 35, 18, 37, 19, 39, 20, 1, 0, 5, 3, 0, 65, 90, 95, 95, 97, 122, 4, 0, 48, 57, 65, 90, 95, 95, 97, 122, 1, 0, 49, 57, 1, 0, 48, 57, 3, 0, 9, 10, 12, 13, 32, 32, 196, 0, 1, 1, 0, 0, 0, 0, 3, 1, 0, 0, 0, 0, 5, 1, 0, 0, 0, 0, 7, 1, 0, 0, 0, 0, 9, 1, 0, 0, 0, 0, 11, 1, 0, 0, 0, 0, 13, 1, 0, 0, 0, 0, 15, 1, 0, 0, 0, 0, 17, 1, 0, 0, 0, 0, 19, 1, 0, 0, 0, 0, 21, 1, 0, 0, 0, 0, 23, 1, 0, 0, 0, 0, 25, 1, 0, 0, 0, 0, 27, 1, 0, 0, 0, 0, 29, 1, 0, 0, 0, 0, 31, 1, 0, 0, 0, 0, 33, 1, 0, 0, 0, 0, 35, 1, 0, 0, 0, 0, 37, 1, 0, 0, 0, 0, 39, 1, 0, 0, 0, 1, 41, 1, 0, 0, 0, 3, 43, 1, 0, 0, 0, 5, 52, 1, 0, 0, 0, 7, 61, 1, 0, 0, 0, 9, 70, 1, 0, 0, 0, 11, 80, 1, 0, 0, 0, 13, 84, 1, 0, 0, 0, 15, 86, 1, 0, 0, 0, 17, 88, 1, 0, 0, 0, 19, 90, 1, 0, 0, 0, 21, 94, 1, 0, 0, 0, 23, 100, 1, 0, 0, 0, 25, 105, 1, 0, 0, 0, 27, 112, 1, 0, 0, 0, 29, 117, 1, 0, 0, 0, 31, 123, 1, 0, 0, 0, 33, 141, 1, 0, 0, 0, 35, 161, 1, 0, 0, 0, 37, 163, 1, 0, 0, 0, 39, 180, 1, 0, 0, 0, 41, 42, 5, 58, 0, 0, 42, 2, 1, 0, 0, 0, 43, 44, 5, 115, 0, 0, 44, 45, 5, 101, 0, 0, 45, 46, 5, 113, 0, 0, 46, 47, 5, 117, 0, 0, 47, 48, 5, 101, 0, 0, 48, 49, 5, 110, 0, 0, 49, 50, 5, 99, 0, 0, 50, 51, 5, 101, 0, 0, 51, 4, 1, 0, 0, 0, 52, 53, 5, 115, 0, 0, 53, 54, 5, 101, 0, 0, 54, 55, 5, 108, 0, 0, 55, 56, 5, 101, 0, 0, 56, 57, 5, 99, 0, 0, 57, 58, 5, 116, 0, 0, 58, 59, 5, 111, 0, 0, 59, 60, 5, 114, 0, 0, 60, 6, 1, 0, 0, 0, 61, 62, 5, 112, 0, 0, 62, 63, 5, 97, 0, 0, 63, 64, 5, 114, 0, 0, 64, 65, 5, 97, 0, 0, 65, 66, 5, 108, 0, 0, 66, 67, 5, 108, 0, 0, 67, 68, 5, 101, 0, 0, 68, 69, 5, 108, 0, 0, 69, 8, 1, 0, 0, 0, 70, 71, 5, 100, 0, 0, 71, 72, 5, 101, 0, 0, 72, 73, 5, 99, 0, 0, 73, 74, 5, 111, 0, 0, 74, 75, 5, 114, 0, 0, 75, 76, 5, 97, 0, 0, 76, 77, 5, 116, 0, 0, 77, 78, 5, 111, 0, 0, 78, 79, 5, 114, 0, 0, 79, 10, 1, 0, 0, 0, 80, 81, 5, 97, 0, 0, 81, 82, 5, 99, 0, 0, 82, 83, 5, 116, 0, 0, 83, 12, 1, 0, 0, 0, 84, 85, 5, 40, 0, 0, 85, 14, 1, 0, 0, 0, 86, 87, 5, 41, 0, 0, 87, 16, 1, 0, 0, 0, 88, 89, 5, 44, 0, 0, 89, 18, 1, 0, 0, 0, 90, 91, 5, 105, 0, 0, 91, 92, 5, 110, 0, 0, 92, 93, 5, 116, 0, 0, 93, 20, 1, 0, 0, 0, 94, 95, 5, 102, 0, 0, 95, 96, 5, 108, 0, 0, 96, 97, 5, 111, 0, 0, 97, 98, 5, 97, 0, 0, 98, 99, 5, 116, 0, 0, 99, 22, 1, 0, 0, 0, 100, 101, 5, 98, 0, 0, 101, 102, 5, 111, 0, 0, 102, 103, 5, 111, 0, 0, 103, 104, 5, 108, 0, 0, 104, 24, 1, 0, 0, 0, 105, 106, 5, 115, 0, 0, 106, 107, 5, 116, 0, 0, 107, 108, 5, 114, 0, 0, 108, 109, 5, 105, 0, 0, 109, 110, 5, 110, 0, 0, 110, 111, 5, 103, 0, 0, 111, 26, 1, 0, 0, 0, 112, 113, 5, 84, 0, 0, 113, 114, 5, 114, 0, 0, 114, 115, 5, 117, 0, 0, 115, 116, 5, 101, 0, 0, 116, 28, 1, 0, 0, 0, 117, 118, 5, 70, 0, 0, 118, 119, 5, 97, 0, 0, 119, 120, 5, 108, 0, 0, 120, 121, 5, 115, 0, 0, 121, 122, 5, 101, 0, 0, 122, 30, 1, 0, 0, 0, 123, 127, 7, 0, 0, 0, 124, 126, 7, 1, 0, 0, 125, 124, 1, 0, 0, 0, 126, 129, 1, 0, 0, 0, 127, 125, 1, 0, 0, 0, 127, 128, 1, 0, 0, 0, 128, 32, 1, 0, 0, 0, 129, 127, 1, 0, 0, 0, 130, 132, 5, 45, 0, 0, 131, 130, 1, 0, 0, 0, 131, 132, 1, 0, 0, 0, 132, 133, 1, 0, 0, 0, 133, 137, 7, 2, 0, 0, 134, 136, 7, 3, 0, 0, 135, 134, 1, 0, 0, 0, 136, 139, 1, 0, 0, 0, 137, 135, 1, 0, 0, 0, 137, 138, 1, 0, 0, 0, 138, 142, 1, 0, 0, 0, 139, 137, 1, 0, 0, 0, 140, 142, 5, 48, 0, 0, 141, 131, 1, 0, 0, 0, 141, 140, 1, 0, 0, 0, 142, 34, 1, 0, 0, 0, 143, 145, 7, 3, 0, 0, 144, 143, 1, 0, 0, 0, 145, 146, 1, 0, 0, 0, 146, 144, 1, 0, 0, 0, 146, 147, 1, 0, 0, 0, 147, 148, 1, 0, 0, 0, 148, 152, 5, 46, 0, 0, 149, 151, 7, 3, 0, 0, 150, 149, 1, 0, 0, 0, 151, 154, 1, 0, 0, 0, 152, 150, 1, 0, 0, 0, 152, 153, 1, 0, 0, 0, 153, 162, 1, 0, 0, 0, 154, 152, 1, 0, 0, 0, 155, 157, 5, 46, 0, 0, 156, 158, 7, 3, 0, 0, 157, 156, 1, 0, 0, 0, 158, 159, 1, 0, 0, 0, 159, 157, 1, 0, 0, 0, 159, 160, 1, 0, 0, 0, 160, 162, 1, 0, 0, 0, 161, 144, 1, 0, 0, 0, 161, 155, 1, 0, 0, 0, 162, 36, 1, 0, 0, 0, 163, 164, 5, 47, 0, 0, 164, 165, 5, 47, 0, 0, 165, 169, 1, 0, 0, 0, 166, 168, 9, 0, 0, 0, 167, 166, 1, 0, 0, 0, 168, 171, 1, 0, 0, 0, 169, 170, 1, 0, 0, 0, 169, 167, 1, 0, 0, 0, 170, 173, 1, 0, 0, 0, 171, 169, 1, 0, 0, 0, 172, 174, 5, 13, 0, 0, 173, 172, 1, 0, 0, 0, 173, 174, 1, 0, 0, 0, 174, 175, 1, 0, 0, 0, 175, 176, 5, 10, 0, 0, 176, 177, 1, 0, 0, 0, 177, 178, 6, 18, 0, 0, 178, 38, 1, 0, 0, 0, 179, 181, 7, 4, 0, 0, 180, 179, 1, 0, 0, 0, 181, 182, 1, 0, 0, 0, 182, 180, 1, 0, 0, 0, 182, 183, 1, 0, 0, 0, 183, 184, 1, 0, 0, 0, 184, 185, 6, 19, 0, 0, 185, 40, 1, 0, 0, 0, 12, 0, 127, 131, 137, 141, 146, 152, 159, 161, 169, 173, 182, 1, 6, 0, 0]
\ No newline at end of file
diff --git a/ptml/ptmlLexer.py b/ptml/ptmlLexer.py
index e51fb6a..f2a16bf 100644
--- a/ptml/ptmlLexer.py
+++ b/ptml/ptmlLexer.py
@@ -10,24 +10,72 @@ else:
 
 def serializedATN():
     return [
-        4,0,5,55,6,-1,2,0,7,0,2,1,7,1,2,2,7,2,2,3,7,3,2,4,7,4,1,0,1,0,1,
-        0,1,0,1,0,1,0,1,0,1,0,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-        2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,
-        3,1,3,1,3,1,4,1,4,5,4,51,8,4,10,4,12,4,54,9,4,0,0,5,1,1,3,2,5,3,
-        7,4,9,5,1,0,2,3,0,65,90,95,95,97,122,4,0,48,57,65,90,95,95,97,122,
-        55,0,1,1,0,0,0,0,3,1,0,0,0,0,5,1,0,0,0,0,7,1,0,0,0,0,9,1,0,0,0,1,
-        11,1,0,0,0,3,20,1,0,0,0,5,29,1,0,0,0,7,38,1,0,0,0,9,48,1,0,0,0,11,
-        12,5,115,0,0,12,13,5,101,0,0,13,14,5,113,0,0,14,15,5,117,0,0,15,
-        16,5,101,0,0,16,17,5,110,0,0,17,18,5,99,0,0,18,19,5,101,0,0,19,2,
-        1,0,0,0,20,21,5,115,0,0,21,22,5,101,0,0,22,23,5,108,0,0,23,24,5,
-        101,0,0,24,25,5,99,0,0,25,26,5,116,0,0,26,27,5,111,0,0,27,28,5,114,
-        0,0,28,4,1,0,0,0,29,30,5,112,0,0,30,31,5,97,0,0,31,32,5,114,0,0,
-        32,33,5,97,0,0,33,34,5,108,0,0,34,35,5,108,0,0,35,36,5,101,0,0,36,
-        37,5,108,0,0,37,6,1,0,0,0,38,39,5,100,0,0,39,40,5,101,0,0,40,41,
-        5,99,0,0,41,42,5,111,0,0,42,43,5,114,0,0,43,44,5,97,0,0,44,45,5,
-        116,0,0,45,46,5,111,0,0,46,47,5,114,0,0,47,8,1,0,0,0,48,52,7,0,0,
-        0,49,51,7,1,0,0,50,49,1,0,0,0,51,54,1,0,0,0,52,50,1,0,0,0,52,53,
-        1,0,0,0,53,10,1,0,0,0,54,52,1,0,0,0,2,0,52,0
+        4,0,20,186,6,-1,2,0,7,0,2,1,7,1,2,2,7,2,2,3,7,3,2,4,7,4,2,5,7,5,
+        2,6,7,6,2,7,7,7,2,8,7,8,2,9,7,9,2,10,7,10,2,11,7,11,2,12,7,12,2,
+        13,7,13,2,14,7,14,2,15,7,15,2,16,7,16,2,17,7,17,2,18,7,18,2,19,7,
+        19,1,0,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,2,1,2,1,2,1,
+        2,1,2,1,2,1,2,1,2,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,3,1,4,1,4,1,
+        4,1,4,1,4,1,4,1,4,1,4,1,4,1,4,1,5,1,5,1,5,1,5,1,6,1,6,1,7,1,7,1,
+        8,1,8,1,9,1,9,1,9,1,9,1,10,1,10,1,10,1,10,1,10,1,10,1,11,1,11,1,
+        11,1,11,1,11,1,12,1,12,1,12,1,12,1,12,1,12,1,12,1,13,1,13,1,13,1,
+        13,1,13,1,14,1,14,1,14,1,14,1,14,1,14,1,15,1,15,5,15,126,8,15,10,
+        15,12,15,129,9,15,1,16,3,16,132,8,16,1,16,1,16,5,16,136,8,16,10,
+        16,12,16,139,9,16,1,16,3,16,142,8,16,1,17,4,17,145,8,17,11,17,12,
+        17,146,1,17,1,17,5,17,151,8,17,10,17,12,17,154,9,17,1,17,1,17,4,
+        17,158,8,17,11,17,12,17,159,3,17,162,8,17,1,18,1,18,1,18,1,18,5,
+        18,168,8,18,10,18,12,18,171,9,18,1,18,3,18,174,8,18,1,18,1,18,1,
+        18,1,18,1,19,4,19,181,8,19,11,19,12,19,182,1,19,1,19,1,169,0,20,
+        1,1,3,2,5,3,7,4,9,5,11,6,13,7,15,8,17,9,19,10,21,11,23,12,25,13,
+        27,14,29,15,31,16,33,17,35,18,37,19,39,20,1,0,5,3,0,65,90,95,95,
+        97,122,4,0,48,57,65,90,95,95,97,122,1,0,49,57,1,0,48,57,3,0,9,10,
+        12,13,32,32,196,0,1,1,0,0,0,0,3,1,0,0,0,0,5,1,0,0,0,0,7,1,0,0,0,
+        0,9,1,0,0,0,0,11,1,0,0,0,0,13,1,0,0,0,0,15,1,0,0,0,0,17,1,0,0,0,
+        0,19,1,0,0,0,0,21,1,0,0,0,0,23,1,0,0,0,0,25,1,0,0,0,0,27,1,0,0,0,
+        0,29,1,0,0,0,0,31,1,0,0,0,0,33,1,0,0,0,0,35,1,0,0,0,0,37,1,0,0,0,
+        0,39,1,0,0,0,1,41,1,0,0,0,3,43,1,0,0,0,5,52,1,0,0,0,7,61,1,0,0,0,
+        9,70,1,0,0,0,11,80,1,0,0,0,13,84,1,0,0,0,15,86,1,0,0,0,17,88,1,0,
+        0,0,19,90,1,0,0,0,21,94,1,0,0,0,23,100,1,0,0,0,25,105,1,0,0,0,27,
+        112,1,0,0,0,29,117,1,0,0,0,31,123,1,0,0,0,33,141,1,0,0,0,35,161,
+        1,0,0,0,37,163,1,0,0,0,39,180,1,0,0,0,41,42,5,58,0,0,42,2,1,0,0,
+        0,43,44,5,115,0,0,44,45,5,101,0,0,45,46,5,113,0,0,46,47,5,117,0,
+        0,47,48,5,101,0,0,48,49,5,110,0,0,49,50,5,99,0,0,50,51,5,101,0,0,
+        51,4,1,0,0,0,52,53,5,115,0,0,53,54,5,101,0,0,54,55,5,108,0,0,55,
+        56,5,101,0,0,56,57,5,99,0,0,57,58,5,116,0,0,58,59,5,111,0,0,59,60,
+        5,114,0,0,60,6,1,0,0,0,61,62,5,112,0,0,62,63,5,97,0,0,63,64,5,114,
+        0,0,64,65,5,97,0,0,65,66,5,108,0,0,66,67,5,108,0,0,67,68,5,101,0,
+        0,68,69,5,108,0,0,69,8,1,0,0,0,70,71,5,100,0,0,71,72,5,101,0,0,72,
+        73,5,99,0,0,73,74,5,111,0,0,74,75,5,114,0,0,75,76,5,97,0,0,76,77,
+        5,116,0,0,77,78,5,111,0,0,78,79,5,114,0,0,79,10,1,0,0,0,80,81,5,
+        97,0,0,81,82,5,99,0,0,82,83,5,116,0,0,83,12,1,0,0,0,84,85,5,40,0,
+        0,85,14,1,0,0,0,86,87,5,41,0,0,87,16,1,0,0,0,88,89,5,44,0,0,89,18,
+        1,0,0,0,90,91,5,105,0,0,91,92,5,110,0,0,92,93,5,116,0,0,93,20,1,
+        0,0,0,94,95,5,102,0,0,95,96,5,108,0,0,96,97,5,111,0,0,97,98,5,97,
+        0,0,98,99,5,116,0,0,99,22,1,0,0,0,100,101,5,98,0,0,101,102,5,111,
+        0,0,102,103,5,111,0,0,103,104,5,108,0,0,104,24,1,0,0,0,105,106,5,
+        115,0,0,106,107,5,116,0,0,107,108,5,114,0,0,108,109,5,105,0,0,109,
+        110,5,110,0,0,110,111,5,103,0,0,111,26,1,0,0,0,112,113,5,84,0,0,
+        113,114,5,114,0,0,114,115,5,117,0,0,115,116,5,101,0,0,116,28,1,0,
+        0,0,117,118,5,70,0,0,118,119,5,97,0,0,119,120,5,108,0,0,120,121,
+        5,115,0,0,121,122,5,101,0,0,122,30,1,0,0,0,123,127,7,0,0,0,124,126,
+        7,1,0,0,125,124,1,0,0,0,126,129,1,0,0,0,127,125,1,0,0,0,127,128,
+        1,0,0,0,128,32,1,0,0,0,129,127,1,0,0,0,130,132,5,45,0,0,131,130,
+        1,0,0,0,131,132,1,0,0,0,132,133,1,0,0,0,133,137,7,2,0,0,134,136,
+        7,3,0,0,135,134,1,0,0,0,136,139,1,0,0,0,137,135,1,0,0,0,137,138,
+        1,0,0,0,138,142,1,0,0,0,139,137,1,0,0,0,140,142,5,48,0,0,141,131,
+        1,0,0,0,141,140,1,0,0,0,142,34,1,0,0,0,143,145,7,3,0,0,144,143,1,
+        0,0,0,145,146,1,0,0,0,146,144,1,0,0,0,146,147,1,0,0,0,147,148,1,
+        0,0,0,148,152,5,46,0,0,149,151,7,3,0,0,150,149,1,0,0,0,151,154,1,
+        0,0,0,152,150,1,0,0,0,152,153,1,0,0,0,153,162,1,0,0,0,154,152,1,
+        0,0,0,155,157,5,46,0,0,156,158,7,3,0,0,157,156,1,0,0,0,158,159,1,
+        0,0,0,159,157,1,0,0,0,159,160,1,0,0,0,160,162,1,0,0,0,161,144,1,
+        0,0,0,161,155,1,0,0,0,162,36,1,0,0,0,163,164,5,47,0,0,164,165,5,
+        47,0,0,165,169,1,0,0,0,166,168,9,0,0,0,167,166,1,0,0,0,168,171,1,
+        0,0,0,169,170,1,0,0,0,169,167,1,0,0,0,170,173,1,0,0,0,171,169,1,
+        0,0,0,172,174,5,13,0,0,173,172,1,0,0,0,173,174,1,0,0,0,174,175,1,
+        0,0,0,175,176,5,10,0,0,176,177,1,0,0,0,177,178,6,18,0,0,178,38,1,
+        0,0,0,179,181,7,4,0,0,180,179,1,0,0,0,181,182,1,0,0,0,182,180,1,
+        0,0,0,182,183,1,0,0,0,183,184,1,0,0,0,184,185,6,19,0,0,185,40,1,
+        0,0,0,12,0,127,131,137,141,146,152,159,161,169,173,182,1,6,0,0
     ]
 
 class ptmlLexer(Lexer):
@@ -40,19 +88,39 @@ class ptmlLexer(Lexer):
     T__1 = 2
     T__2 = 3
     T__3 = 4
-    Names = 5
+    T__4 = 5
+    T__5 = 6
+    T__6 = 7
+    T__7 = 8
+    T__8 = 9
+    T__9 = 10
+    T__10 = 11
+    T__11 = 12
+    T__12 = 13
+    T__13 = 14
+    T__14 = 15
+    Names = 16
+    Integer = 17
+    Float = 18
+    LINE_COMMENT = 19
+    WS = 20
 
     channelNames = [ u"DEFAULT_TOKEN_CHANNEL", u"HIDDEN" ]
 
     modeNames = [ "DEFAULT_MODE" ]
 
     literalNames = [ "<INVALID>",
-            "'sequence'", "'selector'", "'parallel'", "'decorator'" ]
+            "':'", "'sequence'", "'selector'", "'parallel'", "'decorator'", 
+            "'act'", "'('", "')'", "','", "'int'", "'float'", "'bool'", 
+            "'string'", "'True'", "'False'" ]
 
     symbolicNames = [ "<INVALID>",
-            "Names" ]
+            "Names", "Integer", "Float", "LINE_COMMENT", "WS" ]
 
-    ruleNames = [ "T__0", "T__1", "T__2", "T__3", "Names" ]
+    ruleNames = [ "T__0", "T__1", "T__2", "T__3", "T__4", "T__5", "T__6", 
+                  "T__7", "T__8", "T__9", "T__10", "T__11", "T__12", "T__13", 
+                  "T__14", "Names", "Integer", "Float", "LINE_COMMENT", 
+                  "WS" ]
 
     grammarFileName = "ptml.g4"
 
diff --git a/ptml/ptmlLexer.tokens b/ptml/ptmlLexer.tokens
index 897809e..ce804bb 100644
--- a/ptml/ptmlLexer.tokens
+++ b/ptml/ptmlLexer.tokens
@@ -2,8 +2,34 @@ T__0=1
 T__1=2
 T__2=3
 T__3=4
-Names=5
-'sequence'=1
-'selector'=2
-'parallel'=3
-'decorator'=4
+T__4=5
+T__5=6
+T__6=7
+T__7=8
+T__8=9
+T__9=10
+T__10=11
+T__11=12
+T__12=13
+T__13=14
+T__14=15
+Names=16
+Integer=17
+Float=18
+LINE_COMMENT=19
+WS=20
+':'=1
+'sequence'=2
+'selector'=3
+'parallel'=4
+'decorator'=5
+'act'=6
+'('=7
+')'=8
+','=9
+'int'=10
+'float'=11
+'bool'=12
+'string'=13
+'True'=14
+'False'=15
diff --git a/ptml/ptmlListener.py b/ptml/ptmlListener.py
index 16530b7..578d756 100644
--- a/ptml/ptmlListener.py
+++ b/ptml/ptmlListener.py
@@ -26,5 +26,50 @@ class ptmlListener(ParseTreeListener):
         pass
 
 
+    # Enter a parse tree produced by ptmlParser#action_sign.
+    def enterAction_sign(self, ctx:ptmlParser.Action_signContext):
+        pass
+
+    # Exit a parse tree produced by ptmlParser#action_sign.
+    def exitAction_sign(self, ctx:ptmlParser.Action_signContext):
+        pass
+
+
+    # Enter a parse tree produced by ptmlParser#action_parm.
+    def enterAction_parm(self, ctx:ptmlParser.Action_parmContext):
+        pass
+
+    # Exit a parse tree produced by ptmlParser#action_parm.
+    def exitAction_parm(self, ctx:ptmlParser.Action_parmContext):
+        pass
+
+
+    # Enter a parse tree produced by ptmlParser#var_decls.
+    def enterVar_decls(self, ctx:ptmlParser.Var_declsContext):
+        pass
+
+    # Exit a parse tree produced by ptmlParser#var_decls.
+    def exitVar_decls(self, ctx:ptmlParser.Var_declsContext):
+        pass
+
+
+    # Enter a parse tree produced by ptmlParser#var_type.
+    def enterVar_type(self, ctx:ptmlParser.Var_typeContext):
+        pass
+
+    # Exit a parse tree produced by ptmlParser#var_type.
+    def exitVar_type(self, ctx:ptmlParser.Var_typeContext):
+        pass
+
+
+    # Enter a parse tree produced by ptmlParser#boolean.
+    def enterBoolean(self, ctx:ptmlParser.BooleanContext):
+        pass
+
+    # Exit a parse tree produced by ptmlParser#boolean.
+    def exitBoolean(self, ctx:ptmlParser.BooleanContext):
+        pass
+
+
 
 del ptmlParser
\ No newline at end of file
diff --git a/ptml/ptmlParser.py b/ptml/ptmlParser.py
index cf746fd..0b7360d 100644
--- a/ptml/ptmlParser.py
+++ b/ptml/ptmlParser.py
@@ -10,11 +10,27 @@ else:
 
 def serializedATN():
     return [
-        4,1,5,14,2,0,7,0,2,1,7,1,1,0,1,0,1,0,4,0,8,8,0,11,0,12,0,9,1,1,1,
-        1,1,1,0,0,2,0,2,0,1,1,0,1,4,13,0,4,1,0,0,0,2,11,1,0,0,0,4,7,3,2,
-        1,0,5,8,5,5,0,0,6,8,3,0,0,0,7,5,1,0,0,0,7,6,1,0,0,0,8,9,1,0,0,0,
-        9,7,1,0,0,0,9,10,1,0,0,0,10,1,1,0,0,0,11,12,7,0,0,0,12,3,1,0,0,0,
-        2,7,9
+        4,1,20,65,2,0,7,0,2,1,7,1,2,2,7,2,2,3,7,3,2,4,7,4,2,5,7,5,2,6,7,
+        6,1,0,1,0,1,0,1,0,4,0,19,8,0,11,0,12,0,20,1,0,1,0,1,1,1,1,1,1,1,
+        1,1,1,3,1,30,8,1,1,2,1,2,1,2,1,2,3,2,36,8,2,1,2,1,2,1,3,1,3,1,3,
+        1,3,3,3,44,8,3,1,3,1,3,1,3,1,3,1,3,3,3,51,8,3,5,3,53,8,3,10,3,12,
+        3,56,9,3,1,4,1,4,1,4,1,5,1,5,1,6,1,6,1,6,0,0,7,0,2,4,6,8,10,12,0,
+        2,1,0,10,13,1,0,14,15,70,0,14,1,0,0,0,2,29,1,0,0,0,4,31,1,0,0,0,
+        6,43,1,0,0,0,8,57,1,0,0,0,10,60,1,0,0,0,12,62,1,0,0,0,14,15,3,2,
+        1,0,15,18,5,1,0,0,16,19,3,4,2,0,17,19,3,0,0,0,18,16,1,0,0,0,18,17,
+        1,0,0,0,19,20,1,0,0,0,20,18,1,0,0,0,20,21,1,0,0,0,21,22,1,0,0,0,
+        22,23,5,0,0,1,23,1,1,0,0,0,24,30,5,2,0,0,25,30,5,3,0,0,26,27,5,4,
+        0,0,27,30,5,17,0,0,28,30,5,5,0,0,29,24,1,0,0,0,29,25,1,0,0,0,29,
+        26,1,0,0,0,29,28,1,0,0,0,30,3,1,0,0,0,31,32,5,6,0,0,32,33,5,16,0,
+        0,33,35,5,7,0,0,34,36,3,6,3,0,35,34,1,0,0,0,35,36,1,0,0,0,36,37,
+        1,0,0,0,37,38,5,8,0,0,38,5,1,0,0,0,39,44,3,8,4,0,40,44,5,17,0,0,
+        41,44,5,18,0,0,42,44,3,12,6,0,43,39,1,0,0,0,43,40,1,0,0,0,43,41,
+        1,0,0,0,43,42,1,0,0,0,44,54,1,0,0,0,45,50,5,9,0,0,46,51,3,8,4,0,
+        47,51,5,17,0,0,48,51,5,18,0,0,49,51,3,12,6,0,50,46,1,0,0,0,50,47,
+        1,0,0,0,50,48,1,0,0,0,50,49,1,0,0,0,51,53,1,0,0,0,52,45,1,0,0,0,
+        53,56,1,0,0,0,54,52,1,0,0,0,54,55,1,0,0,0,55,7,1,0,0,0,56,54,1,0,
+        0,0,57,58,3,10,5,0,58,59,5,16,0,0,59,9,1,0,0,0,60,61,7,0,0,0,61,
+        11,1,0,0,0,62,63,7,1,0,0,63,13,1,0,0,0,7,18,20,29,35,43,50,54
     ]
 
 class ptmlParser ( Parser ):
@@ -27,23 +43,48 @@ class ptmlParser ( Parser ):
 
     sharedContextCache = PredictionContextCache()
 
-    literalNames = [ "<INVALID>", "'sequence'", "'selector'", "'parallel'", 
-                     "'decorator'" ]
+    literalNames = [ "<INVALID>", "':'", "'sequence'", "'selector'", "'parallel'", 
+                     "'decorator'", "'act'", "'('", "')'", "','", "'int'", 
+                     "'float'", "'bool'", "'string'", "'True'", "'False'" ]
 
     symbolicNames = [ "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
-                      "<INVALID>", "Names" ]
+                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
+                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
+                      "<INVALID>", "<INVALID>", "<INVALID>", "<INVALID>", 
+                      "Names", "Integer", "Float", "LINE_COMMENT", "WS" ]
 
     RULE_tree = 0
     RULE_internal_node = 1
+    RULE_action_sign = 2
+    RULE_action_parm = 3
+    RULE_var_decls = 4
+    RULE_var_type = 5
+    RULE_boolean = 6
 
-    ruleNames =  [ "tree", "internal_node" ]
+    ruleNames =  [ "tree", "internal_node", "action_sign", "action_parm", 
+                   "var_decls", "var_type", "boolean" ]
 
     EOF = Token.EOF
     T__0=1
     T__1=2
     T__2=3
     T__3=4
-    Names=5
+    T__4=5
+    T__5=6
+    T__6=7
+    T__7=8
+    T__8=9
+    T__9=10
+    T__10=11
+    T__11=12
+    T__12=13
+    T__13=14
+    T__14=15
+    Names=16
+    Integer=17
+    Float=18
+    LINE_COMMENT=19
+    WS=20
 
     def __init__(self, input:TokenStream, output:TextIO = sys.stdout):
         super().__init__(input, output)
@@ -65,11 +106,15 @@ class ptmlParser ( Parser ):
             return self.getTypedRuleContext(ptmlParser.Internal_nodeContext,0)
 
 
-        def Names(self, i:int=None):
+        def EOF(self):
+            return self.getToken(ptmlParser.EOF, 0)
+
+        def action_sign(self, i:int=None):
             if i is None:
-                return self.getTokens(ptmlParser.Names)
+                return self.getTypedRuleContexts(ptmlParser.Action_signContext)
             else:
-                return self.getToken(ptmlParser.Names, i)
+                return self.getTypedRuleContext(ptmlParser.Action_signContext,i)
+
 
         def tree(self, i:int=None):
             if i is None:
@@ -96,36 +141,39 @@ class ptmlParser ( Parser ):
 
         localctx = ptmlParser.TreeContext(self, self._ctx, self.state)
         self.enterRule(localctx, 0, self.RULE_tree)
+        self._la = 0 # Token type
         try:
             self.enterOuterAlt(localctx, 1)
-            self.state = 4
+            self.state = 14
             self.internal_node()
-            self.state = 7 
+            self.state = 15
+            self.match(ptmlParser.T__0)
+            self.state = 18 
             self._errHandler.sync(self)
-            _alt = 1
-            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
-                if _alt == 1:
-                    self.state = 7
-                    self._errHandler.sync(self)
-                    token = self._input.LA(1)
-                    if token in [5]:
-                        self.state = 5
-                        self.match(ptmlParser.Names)
-                        pass
-                    elif token in [1, 2, 3, 4]:
-                        self.state = 6
-                        self.tree()
-                        pass
-                    else:
-                        raise NoViableAltException(self)
-
-
+            _la = self._input.LA(1)
+            while True:
+                self.state = 18
+                self._errHandler.sync(self)
+                token = self._input.LA(1)
+                if token in [6]:
+                    self.state = 16
+                    self.action_sign()
+                    pass
+                elif token in [2, 3, 4, 5]:
+                    self.state = 17
+                    self.tree()
+                    pass
                 else:
                     raise NoViableAltException(self)
-                self.state = 9 
-                self._errHandler.sync(self)
-                _alt = self._interp.adaptivePredict(self._input,1,self._ctx)
 
+                self.state = 20 
+                self._errHandler.sync(self)
+                _la = self._input.LA(1)
+                if not ((((_la) & ~0x3f) == 0 and ((1 << _la) & 124) != 0)):
+                    break
+
+            self.state = 22
+            self.match(ptmlParser.EOF)
         except RecognitionException as re:
             localctx.exception = re
             self._errHandler.reportError(self, re)
@@ -142,6 +190,8 @@ class ptmlParser ( Parser ):
             super().__init__(parent, invokingState)
             self.parser = parser
 
+        def Integer(self):
+            return self.getToken(ptmlParser.Integer, 0)
 
         def getRuleIndex(self):
             return ptmlParser.RULE_internal_node
@@ -161,12 +211,345 @@ class ptmlParser ( Parser ):
 
         localctx = ptmlParser.Internal_nodeContext(self, self._ctx, self.state)
         self.enterRule(localctx, 2, self.RULE_internal_node)
+        try:
+            self.state = 29
+            self._errHandler.sync(self)
+            token = self._input.LA(1)
+            if token in [2]:
+                self.enterOuterAlt(localctx, 1)
+                self.state = 24
+                self.match(ptmlParser.T__1)
+                pass
+            elif token in [3]:
+                self.enterOuterAlt(localctx, 2)
+                self.state = 25
+                self.match(ptmlParser.T__2)
+                pass
+            elif token in [4]:
+                self.enterOuterAlt(localctx, 3)
+                self.state = 26
+                self.match(ptmlParser.T__3)
+                self.state = 27
+                self.match(ptmlParser.Integer)
+                pass
+            elif token in [5]:
+                self.enterOuterAlt(localctx, 4)
+                self.state = 28
+                self.match(ptmlParser.T__4)
+                pass
+            else:
+                raise NoViableAltException(self)
+
+        except RecognitionException as re:
+            localctx.exception = re
+            self._errHandler.reportError(self, re)
+            self._errHandler.recover(self, re)
+        finally:
+            self.exitRule()
+        return localctx
+
+
+    class Action_signContext(ParserRuleContext):
+        __slots__ = 'parser'
+
+        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
+            super().__init__(parent, invokingState)
+            self.parser = parser
+
+        def Names(self):
+            return self.getToken(ptmlParser.Names, 0)
+
+        def action_parm(self):
+            return self.getTypedRuleContext(ptmlParser.Action_parmContext,0)
+
+
+        def getRuleIndex(self):
+            return ptmlParser.RULE_action_sign
+
+        def enterRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "enterAction_sign" ):
+                listener.enterAction_sign(self)
+
+        def exitRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "exitAction_sign" ):
+                listener.exitAction_sign(self)
+
+
+
+
+    def action_sign(self):
+
+        localctx = ptmlParser.Action_signContext(self, self._ctx, self.state)
+        self.enterRule(localctx, 4, self.RULE_action_sign)
         self._la = 0 # Token type
         try:
             self.enterOuterAlt(localctx, 1)
-            self.state = 11
+            self.state = 31
+            self.match(ptmlParser.T__5)
+            self.state = 32
+            self.match(ptmlParser.Names)
+            self.state = 33
+            self.match(ptmlParser.T__6)
+            self.state = 35
+            self._errHandler.sync(self)
             _la = self._input.LA(1)
-            if not((((_la) & ~0x3f) == 0 and ((1 << _la) & 30) != 0)):
+            if (((_la) & ~0x3f) == 0 and ((1 << _la) & 457728) != 0):
+                self.state = 34
+                self.action_parm()
+
+
+            self.state = 37
+            self.match(ptmlParser.T__7)
+        except RecognitionException as re:
+            localctx.exception = re
+            self._errHandler.reportError(self, re)
+            self._errHandler.recover(self, re)
+        finally:
+            self.exitRule()
+        return localctx
+
+
+    class Action_parmContext(ParserRuleContext):
+        __slots__ = 'parser'
+
+        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
+            super().__init__(parent, invokingState)
+            self.parser = parser
+
+        def var_decls(self, i:int=None):
+            if i is None:
+                return self.getTypedRuleContexts(ptmlParser.Var_declsContext)
+            else:
+                return self.getTypedRuleContext(ptmlParser.Var_declsContext,i)
+
+
+        def Integer(self, i:int=None):
+            if i is None:
+                return self.getTokens(ptmlParser.Integer)
+            else:
+                return self.getToken(ptmlParser.Integer, i)
+
+        def Float(self, i:int=None):
+            if i is None:
+                return self.getTokens(ptmlParser.Float)
+            else:
+                return self.getToken(ptmlParser.Float, i)
+
+        def boolean(self, i:int=None):
+            if i is None:
+                return self.getTypedRuleContexts(ptmlParser.BooleanContext)
+            else:
+                return self.getTypedRuleContext(ptmlParser.BooleanContext,i)
+
+
+        def getRuleIndex(self):
+            return ptmlParser.RULE_action_parm
+
+        def enterRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "enterAction_parm" ):
+                listener.enterAction_parm(self)
+
+        def exitRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "exitAction_parm" ):
+                listener.exitAction_parm(self)
+
+
+
+
+    def action_parm(self):
+
+        localctx = ptmlParser.Action_parmContext(self, self._ctx, self.state)
+        self.enterRule(localctx, 6, self.RULE_action_parm)
+        self._la = 0 # Token type
+        try:
+            self.enterOuterAlt(localctx, 1)
+            self.state = 43
+            self._errHandler.sync(self)
+            token = self._input.LA(1)
+            if token in [10, 11, 12, 13]:
+                self.state = 39
+                self.var_decls()
+                pass
+            elif token in [17]:
+                self.state = 40
+                self.match(ptmlParser.Integer)
+                pass
+            elif token in [18]:
+                self.state = 41
+                self.match(ptmlParser.Float)
+                pass
+            elif token in [14, 15]:
+                self.state = 42
+                self.boolean()
+                pass
+            else:
+                raise NoViableAltException(self)
+
+            self.state = 54
+            self._errHandler.sync(self)
+            _la = self._input.LA(1)
+            while _la==9:
+                self.state = 45
+                self.match(ptmlParser.T__8)
+                self.state = 50
+                self._errHandler.sync(self)
+                token = self._input.LA(1)
+                if token in [10, 11, 12, 13]:
+                    self.state = 46
+                    self.var_decls()
+                    pass
+                elif token in [17]:
+                    self.state = 47
+                    self.match(ptmlParser.Integer)
+                    pass
+                elif token in [18]:
+                    self.state = 48
+                    self.match(ptmlParser.Float)
+                    pass
+                elif token in [14, 15]:
+                    self.state = 49
+                    self.boolean()
+                    pass
+                else:
+                    raise NoViableAltException(self)
+
+                self.state = 56
+                self._errHandler.sync(self)
+                _la = self._input.LA(1)
+
+        except RecognitionException as re:
+            localctx.exception = re
+            self._errHandler.reportError(self, re)
+            self._errHandler.recover(self, re)
+        finally:
+            self.exitRule()
+        return localctx
+
+
+    class Var_declsContext(ParserRuleContext):
+        __slots__ = 'parser'
+
+        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
+            super().__init__(parent, invokingState)
+            self.parser = parser
+
+        def var_type(self):
+            return self.getTypedRuleContext(ptmlParser.Var_typeContext,0)
+
+
+        def Names(self):
+            return self.getToken(ptmlParser.Names, 0)
+
+        def getRuleIndex(self):
+            return ptmlParser.RULE_var_decls
+
+        def enterRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "enterVar_decls" ):
+                listener.enterVar_decls(self)
+
+        def exitRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "exitVar_decls" ):
+                listener.exitVar_decls(self)
+
+
+
+
+    def var_decls(self):
+
+        localctx = ptmlParser.Var_declsContext(self, self._ctx, self.state)
+        self.enterRule(localctx, 8, self.RULE_var_decls)
+        try:
+            self.enterOuterAlt(localctx, 1)
+            self.state = 57
+            self.var_type()
+            self.state = 58
+            self.match(ptmlParser.Names)
+        except RecognitionException as re:
+            localctx.exception = re
+            self._errHandler.reportError(self, re)
+            self._errHandler.recover(self, re)
+        finally:
+            self.exitRule()
+        return localctx
+
+
+    class Var_typeContext(ParserRuleContext):
+        __slots__ = 'parser'
+
+        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
+            super().__init__(parent, invokingState)
+            self.parser = parser
+
+
+        def getRuleIndex(self):
+            return ptmlParser.RULE_var_type
+
+        def enterRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "enterVar_type" ):
+                listener.enterVar_type(self)
+
+        def exitRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "exitVar_type" ):
+                listener.exitVar_type(self)
+
+
+
+
+    def var_type(self):
+
+        localctx = ptmlParser.Var_typeContext(self, self._ctx, self.state)
+        self.enterRule(localctx, 10, self.RULE_var_type)
+        self._la = 0 # Token type
+        try:
+            self.enterOuterAlt(localctx, 1)
+            self.state = 60
+            _la = self._input.LA(1)
+            if not((((_la) & ~0x3f) == 0 and ((1 << _la) & 15360) != 0)):
+                self._errHandler.recoverInline(self)
+            else:
+                self._errHandler.reportMatch(self)
+                self.consume()
+        except RecognitionException as re:
+            localctx.exception = re
+            self._errHandler.reportError(self, re)
+            self._errHandler.recover(self, re)
+        finally:
+            self.exitRule()
+        return localctx
+
+
+    class BooleanContext(ParserRuleContext):
+        __slots__ = 'parser'
+
+        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
+            super().__init__(parent, invokingState)
+            self.parser = parser
+
+
+        def getRuleIndex(self):
+            return ptmlParser.RULE_boolean
+
+        def enterRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "enterBoolean" ):
+                listener.enterBoolean(self)
+
+        def exitRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "exitBoolean" ):
+                listener.exitBoolean(self)
+
+
+
+
+    def boolean(self):
+
+        localctx = ptmlParser.BooleanContext(self, self._ctx, self.state)
+        self.enterRule(localctx, 12, self.RULE_boolean)
+        self._la = 0 # Token type
+        try:
+            self.enterOuterAlt(localctx, 1)
+            self.state = 62
+            _la = self._input.LA(1)
+            if not(_la==14 or _la==15):
                 self._errHandler.recoverInline(self)
             else:
                 self._errHandler.reportMatch(self)