user_query: Add to list of Favorite Sports Basketball, Table Tennis and Billards. 
response_text: OK. Which list do you want to add to?
user_query: Create a list named Favorite Sports and add to it Basketball, Table Tennis and Billards. 
response_text: Got it, I made a list called "Favorite Sports" and added those three things.
user_query: Clear my Favorite Sports list completely.
response_text: OK. Favorite Sports Basketball, Table Tennis and Billards on your list called "Favorite Sports". Anything else?
User: Let's stop by Target, well no, let's do Publix, and get me some hot chocolate mix.
Parse: Get_product ( product « some hot chocolate mix » product_source « Publix » )