user_query: create a meat list
response_text: Sure, I made a list called "Meat".
user_query: add lamp
response_text: OK. Lamp on your list called "Meat". Anything else?
user_query: chicken
response_text: OK. Chicken. Anything else?
user_query: Delete all items on Meat
response_text: You have eleven lists. Which one do you want to clear?
User: Please record the apple no I meant pear i had for a snack.
Parse: Log_nutrition ( food « pear » meal « snack » )