RoboWaiter/robowaiter/behavior_tree/ptml/test/bracket_ptml.ptml

selector
{
    selector
{
        cond HasMap()
        act ExploreEnv()

}    sequence
{
        cond Chatting()
        act DealChat()

}    sequence
{
        cond HasSubTask()
        sequence
{
            cond At(Robot,Table)

}        // cond At(Robot,Table)}}