user_query: Clear my list of all entries.
response_text: You have eleven lists. Which one do you want to clear?
user_query: shopping
response_text: You have eleven lists. Which one do you want to clear?
user_query: groceries
response_text: You have eleven lists. Which one do you want to clear?
User: add chocolate to a list
Parse: Add_item_to_list ( items « chocolate » list_singular_or_plural « list » )