Task: Story Composition
Input (English): Premise: Tom went to ride his bike and saw it was gone. 
 Initial Context: He looked everywhere for it. 
 Original Ending: After posting flyers around the neighborhood, he didn't hear back. One morning, the bike was back in his garage. Tom suspects it was stolen. 
 Counterfactual Context: He investigate everywhere for bike.
Output (English): He posted flyers around the neighborhood, but never heard anything about his bike. One morning, the bike was back in his garage. Tom suspects it was stolen.