user_query: onion, chili
response_text: OK, I added onion, chili.
user_query: Groceries
response_text: What do you want to add?
user_query: Please include some items on my initial list.
response_text: Alright. Which list do you want to add to?
User: Put a Staubsauger on my wishlist.
Parse: Add_item_to_list ( list_label « Staubsauger » list_label « wishlist » )