Task: Story Composition
Input (English): Premise: Phil has heard that shaving his legs will make him swim faster. 
 Initial Context: While he does not want to shave, he wants to know if it works. 
 Original Ending: He shaves his legs and finds that he can swim much faster. Phil now is one of the fastest swimmers in town. He is happy that he tried shaving his legs. 
 Counterfactual Context: While he does not want to shave, he ask his friend to do to know if it works.
Output (English): He shaves his legs and finds that he can swim much faster. Phil now is one of the fastest swimmers in town. He is happy that he tried shaving his legs.