user_query: check playoff tree on sports list
response_text: Which list?
user_query: check it off
response_text: Which list?
user_query: sports
response_text: OK, I added playoff tree.
user_query: add playoff tree to my list
response_text: OK. Which list do you want to add to?
User: Fitbit, I mean Mi Fit, log that I walked for 45 minutes.
Parse: Log_exercise ( activity « walked » duration « 45 minutes » provider « Mi Fit » )