user_query: Add an item to the Necessities list.
response_text: What do you want to add?
user_query: toilet tissue
response_text: I couldn't find a list called "Necessities." Do you want me to make one?
user_query: Sounds good
response_text: Got it, I made a list called "Necessities" and added toilet tissue.
User: Log my weight training session of 2, no, 3 sets of 12 repetitions of squats.
Parse: Log_exercise ( activity « squats » number_of_repetitions « 12 » number_of_sets « 3 » )