if something is a messages for a produce then that something performs that refrigerator
mail is message. compromised_data_source_sending is sending_data. compromised_data_source_sending is not sending_data. message_and_message_queue_function is not coding_function. beverage_refrigerator is not refrigerator. refrigerator is not white_goods. electric_refrigerator is not refrigerator. refrigerator_cookie is not cookie. message_and_message_queue_function is coding_function.