user_query: Begin a new list with lemons, limes, sugar, water
response_text: Alright, what do you want to call it?
user_query: Lemon limeade recipe
response_text: Alright, I made a list called "Lemon Limeade Recipe" and added those four things.
user_query: Cancel the list that has lemons
response_text: OK, I deleted lemons.
user_query: delete the list that has limes and sugar
response_text: Sure, I deleted limes.
User: Log my weight training session of 2, no, 3 sets of 12 repetitions of squats on MyFitnessPal.
Parse: Log_exercise ( activity « weight training » activity « squats » number_of_repetitions « 12 » number_of_sets « 3 » provider « MyFitnessPal » )