user_query: Create a list called grocery shopping
response_text: Alright, I made a list called "Grocery Shopping".
user_query: Add item milk to grocery shopping list
response_text: Alright. Milk on your list called "Grocery Shopping". Anything else?
user_query: Create a list called shop for groceries
response_text: Sure, I made a list called "Shop For Groceries".
user_query: Add item milk to shop for groceries list
response_text: Got it. Milk. Anything else?
User: put pay property taxes on the to do list
Parse: Add_item_to_list ( items « pay property taxes » list_label « to do » list_singular_or_plural « list » )