def __init__(self):
        """
        Initializes some basic structs for the controller.
        """

        self.sys_output = ''
        self.user_output = ''
        self.sys_output_dacts = []
        self.user_output_dacts = []
        self.goal = None

        Initializes some basic structs for the controller.
        
plato/controller/basic_controller.py