Task: Story Composition
Input (English): Premise: It was Sara's turn to let the dog outside. 
 Initial Context: Sara opened the front door and let the dog run out. 
 Original Ending: A couple hours later Sara remembered the dog and went to let him in. She noticed the gate was open and her dog was missing. Sara rushed to tell her mom that the dog was missing. 
 Counterfactual Context: Sarah forgot to open the door and let the dog out.
Output (English): A couple hours later Sara remembered the dog and let him out. She noticed the gate was open. Sara rushed to close the gate before the dog noticed.