user_query: clear the list
response_text: Are you sure you want to go ahead and clear it?
user_query: my packing list
response_text: You have two things on that list.
user_query: what are they?
response_text: Who are you asking about?
user_query: show me my packing list
response_text: You have two things on that list.
User: Send Vivian an email about the concert
Parse: Send_digital_object ( medium « email » object Electronic_message ( topic « the concert » ) recipient Personal_contact ( person « Vivian » ) )