user_query: add wash do to my to-do list 
response_text: Sure, I added wash do.
user_query: display my to-do list 
response_text: You have one thing on that list.
user_query: Get my recent to-do list 
response_text: You have one thing on that list.
User: Do a video call to Max with the rear camera, no front camera on.
Parse: Initiate_call ( callee Personal_contact ( person « Max » ) format « video » options Call_parameter_setting ( parameter « front camera » value « on » ) )