user_query: pick up groceries
response_text: Alright, do you want to add time?
user_query: can you create a task for 4pm
response_text: What's the reminder?
User: log 2 sets of 5, no 10 jumping jacks
Parse: Log_exercise ( activity « jumping jacks » number_of_repetitions « 10 » number_of_sets « 2 » )