RoboWaiter/robowaiter/behavior_tree/ptml/test/tab_test.ptml

selector
//    selector
//        cond HasMap()
//        act ExploreEnv()
    sequence
        cond Chatting()
        act DealChat()
    sequence
        cond HasSubTask()
        sequence
            act SubTaskPlaceHolder()
        cond At(Talb,ea)