user_query: add an item to a list
response_text: OK. Which list do you want to add to?
user_query: hiking
response_text: What do you want to add?
user_query: nevermind add an item to my swimming list
response_text: What do you want to add?
User: I want to send a email to um Barb.
Parse: Send_digital_object ( medium « email » recipient Personal_contact ( person « Barb » ) )