user_query: I need a book list
response_text: Got it, I made a list called "Book".
user_query: I need a list of books
response_text: Sure, I made a list called "Books".
user_query: delete books
response_text: Which item?
user_query: books list
response_text: I couldn't find books on your list called "Books."
User: Please email the rental agency and let them know I will be late.
Parse: Send_digital_object ( medium « email » object Electronic_message ( content « I will be late » ) recipient Personal_contact ( person « the rental agency » ) )