user_query: I want to add Jane Eyre to my Books to Read list.
response_text: I couldn't find a list called "Books To Read." Do you want me to make one?
user_query: Yes.
response_text: Got it, I made a list called "Books To Read" and added Jane Eyre.
user_query: I want to add Sense Y Sensibility to my Books to Read list instead of Jane Eyre.
response_text: Got it, I changed the list item to Jane Eyre on your list called "Books To Read."
User: Add Sense & Sensibility instead of Jane Eyre to my Books to Read list.
Parse: Add_item_to_list ( items « Sense & Sensibility » list_label « Books to Read » list_singular_or_plural « list » )