user_query: please tell me the three items on the second list
response_text: Sure. You have eleven lists. Which one do you want to know about?
user_query: the second list
response_text: You have one thing on that list.
user_query: show the second list
response_text: You have eleven lists. Which one do you want to know about?
user_query: go to lists
response_text: You have quite a few lists.
User: How much is my gas bill, no I mean water bill for this month?
Parse: Get_bill ( account_type « water » billing_date_span « this month » )