(Program
  (Module
    (Identifier))
  (Function
    (Empty)
    (Identifier)
    (Select
      (
        (Communication
          (Receive
            (Identifier)
            (Identifier))
          (Call
            (Identifier)
            (Identifier)
            (Empty)))
        (Communication
          (Send
            (Identifier)
            (Identifier))
          (Call
            (Identifier)
            (Integer)
            (Empty)))
        (Communication
          (Receive
            (Empty)
            (Call
              (MemberAccess
                (Identifier)
                (Identifier))
              (Integer)
              (Empty)))
          (Call
            (Identifier)
            (Integer)
            (Empty)))
        (Communication
          (DefaultCommunication)
          (Return
            (Empty)))))))