Task: Story Composition
Input (English): Premise: Alex was walking home from school. 
 Initial Context: Suddenly, he noticed something wet on his back. 
 Original Ending: He looked in his backpack and saw that his soda has spilled. The sticky liquid had gotten everywhere. Alex had to empty out his whole bag and wash it. 
 Counterfactual Context: Suddenly he noticed something crawling on his back.
Output (English): He looked and seen a spider crawling up his back. The spider was freaking out. Alex had to kill the spider.