user_query: renive all items from my to-do list
response_text: You have two lists with similar names. Which one do you want to clear?
user_query: yes
response_text: It looks like that list is already empty.
user_query: I want to see all of my lists
response_text: You have quite a few lists.
user_query: clear all the lists
response_text: You have eleven lists. Which one do you want to clear?
user_query: create a to-do list
response_text: Sorry, it looks like you already have a list with that name. Do you still want to make a new one?
User: Display the previous To-Do Liste.
Parse: Get_list ( list_label « To-Do » list_position List_position ( relative_position « previous » ) list_singular_or_plural « Liste » )