user_query: christmas list
response_text: You have one thing on that list.
user_query: add ice cram
response_text: Got it, I added ice cream.
user_query: nevermind that. add to grocery list instead
response_text: Sure, I changed the list title to "Grocery."
user_query: add ice cream to it
response_text: Alright. Ice cream on your list called "Grocery". Anything else?
User: Bring up a new list for the BBQ and add ribs, pork butt and beer.
Parse: Create_list ( items « ribs » items « pork butt » items « beer » items « BBQ » )