Task: Story Composition
Input (English): Premise: It had been raining for three hours now. 
 Initial Context: John looked out the window, dismayed that his picnic would be ruined. 
 Original Ending: Just as he was about to give up, so did the rain. John quickly loaded up the car and started to drive. He drove to his favorite picnic spot with his family. 
 Counterfactual Context: John looked out the window, and the rain stop.
Output (English): Just as he was about to give up it had happened. John quickly loaded up the car and started to drive. He drove to his favorite picnic spot with his family.