user_query: I want a new list titled top business ideas
response_text: Alright, I made a list called "Top Business Ideas".
user_query: Clear lists
response_text: You have eleven lists. Which one do you want to clear?
user_query: Top Business Ideas
response_text: It looks like that list is already empty.
user_query: add paper and scissor
response_text: OK. Which list do you want to add to?
user_query: Top Business Ideas
response_text: OK. Paper and scissor on your list called "Top Business Ideas". Anything else?
User: Check Google's stock price at the close of yesterday.
Parse: Get_security_price ( price_type « close » security_identifier « Google » security_type « stock » time « yesterday » )