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: Um, let's make that video 4 minutes long.
Parse: Record_video ( duration « 4 minutes » )