Task: Story Composition
Input (English): Premise: The man rode downhill on his bike. 
 Initial Context: Some dirt flew up from his tire. 
 Original Ending: The dirt got stuck in his eye. The man couldn't see. He crashed his bike into a tree. 
 Counterfactual Context: He went so fast he rode into traffic.
Output (English): The brakes got stuck in his bike. The man could not stop. He crashed his bike into a tree.