user_query: Show me a list
response_text: You have eleven lists. Which one do you want to know about?
user_query: Camping Trip
response_text: You have eleven lists. Which one do you want to know about?
user_query: Camping Trip list
response_text: You have eleven lists. Which one do you want to know about?
User: add beer to list
Parse: Add_item_to_list ( items « beer » list_singular_or_plural « list » )