user_query: Add baby massage and cook rice to my to-do list.
response_text: Sure, I added baby massage and cook rice.
user_query: Remove cook rice from the list.
response_text: I couldn't find cook rice.
user_query: Remove cook rice from my to-do list.
response_text: I couldn't find cook rice on your list called "To Do."
User: Show me what um David emailed me yesterday.
Parse: Get_message_content ( message Electronic_message ( date « yesterday » medium « emailed » sender Personal_contact ( person « David » ) ) modality « Show » )