user_query: put Patsy Cline on the music list
response_text: Sure, I added Patsy Cline.
user_query: rescind that
response_text: Got it. Rescind on your list called "music". Anything else?
user_query: reverse the last
response_text: Alright. Rescind on your list called "music". Anything else?
User: Please add coffee to the top spot of my second list, I mean first list.
Parse: Add_item_to_list ( items « coffee » list_position List_position ( absolute_position « top » absolute_position « first » unit « spot » ) list_singular_or_plural « list » )