Task: Story Composition
Input (English): Premise: I went to take the trash to the curb. 
 Initial Context: The bag was very heavy, and started stretching. 
 Original Ending: Halfway down the driveway, the bag broke. Trash spilled out all over. I spent an hour cleaning it up. 
 Counterfactual Context: It was garbage day and the garbage truck was already there.
Output (English): Halfway down the driveway, the garbage truck left. Then suddenly, trash spilled out all over. I spent an hour cleaning it up.