user_query: no, delete that item
response_text: Which item?
user_query: add 5 reams of paper to my walmart list
response_text: OK, I added 5 reams of paper.
User: Get Mary’s PMs, I mean email about tonight’s dinner.
Parse: Get_message_content ( message Electronic_message ( medium « email » sender Personal_contact ( person « Mary » ) topic « tonight’s dinner » ) )