user_query: create a list named pet
response_text: Sure, I made a list called "Pet".
user_query: add meat
response_text: Sure. Meat on your list called "Pet". Anything else?
user_query: add food
response_text: OK. Food. Anything else?
user_query: no
response_text: OK, your list is updated.
User: I want to log that I did 80 pushups now.
Parse: Log_exercise ( activity « pushups » number_of_repetitions « 80 » )