Task: Story Composition
Input (English): Premise: Dave wanted to be a cop. 
 Initial Context: He bought a police scanner. 
 Original Ending: One day he heard about a bad accident. He went to the accident, and it was gruesome. He decided he no longer wanted to be a cop. 
 Counterfactual Context: He bought a police costume.
Output (English): One day, he heard about policeman training. He passed by a gruesome accident. He decided he no longer wanted to be a cop.