Task: Story Composition
Input (English): Premise: Mr and Mrs Smith were dining out for their anniversary. 
 Initial Context: As their drinks were being delivered, Mr Smith's phone rang. 
 Original Ending: The caller was their babysitter. Their children were sick. He paid the check, and the Smiths went home hungry. 
 Counterfactual Context: They had left their phones at home so they weren't disturbed.
Output (English): The babysitter was trying to call them. Their children were sick. The Smiths had no idea until they went home.