user_query: add candles 
response_text: OK, I added candles.
user_query: add item second on shopping list 
response_text: What do you want to add?
user_query: Add item second on list 
response_text: Alright. Which list do you want to add to?
User: Tell me what Jan said.
Parse: Get_message_content ( modality « Tell » sender Personal_contact ( person « Jan » ) )