user_query: Add something to my shopping list
response_text: What do you want to add?
user_query: Wait, add it to the to do list instead
response_text: What do you want to add?
User: I need to add items to my last list, no make that my first list.
Parse: Add_item_to_list ( list_position List_position ( absolute_position « first » ) list_singular_or_plural « list » )