user_query: walmart list
response_text: You have two things on that list.
user_query: no show me my list
response_text: You have eleven lists. Which one do you want to know about?
user_query: show me list with new tires on it
response_text: Here's what I found
User: In black &  white I want a photo in black & white.
Parse: Take_photo ( filter « black & white » )