user_query: add green peppers to my shopping list 
response_text: Alright, I added green peppers.
user_query: display my shopping list 
response_text: You have two things on that list.
user_query: get my shopping list 
response_text: You have two things on that list.
User: Record my lunch today on Livongo food log.
Parse: Log_nutrition ( meal « lunch » provider « Livongo » time « today » )