user_query: Add duncan, olajuwon and Shaq to the NBA Best Centers List
response_text: I couldn't find a list called "Nba Best Centers." Do you want me to make one?
user_query: yes
response_text: Got it, I made a list called "Nba Best Centers" and added those two things.
User: How much is my water bill, I mean electric bill
Parse: Get_bill ( account_type « electric » )