Task: Story Composition
Input (English): Premise: Kenny walked into his new classroom. 
 Initial Context: The teacher introduced him to the other classmates. 
 Original Ending: However, one of the boys came up to Kenny. Kenny got bit on the arm by him. They fought with each other using their fists. 
 Counterfactual Context: Except for the teacher, the classroom was empty.
Output (English): However, a mosquito flew up to Kenny. Kenny got bit on the arm by it. He squashed it using his fists.