user_query: create a list called clothespins and add the regular kind and the weird kind to it
response_text: Got it, what do you want to call it?
user_query: clothespins
response_text: Sure, I made a list called "Clothespins" and added those two things.
user_query: can you update the list I just made?
response_text: What do you want to call it instead?
User: Show me the list I created last week
Parse: Get_list ( list_creation_time « last week » list_singular_or_plural « list » modality « Show » )