user_query: Add this item to  the shopping list
response_text: What do you want to add?
user_query: Instead add it to the christmas list
response_text: What do you want to add?
User: Log the 900, er no 800 calorie cheesecake I had for dessert.
Parse: Log_nutrition ( culinary_quantity « 800 calorie » food « cheesecake » meal « dessert » )