user_query: Add eggs and butter to the list
response_text: Alright. Which list do you want to add to?
user_query: Shopping
response_text: OK, I added those two things.
user_query: Add them to the Walmart list instead
response_text: You have two items on that list. Which one do you want to edit?
user_query: All
response_text: You have two items on that list. Which one do you want to edit?
user_query: First two
response_text: What do you want to call it instead?
User: put wrapping paper on my christmas list
Parse: Add_item_to_list ( items AllOf ( Operand « wrapping paper » ) list_label « christmas » )