Task: Story Composition
Input (English): Premise: I kept hearing a strange noise in the apartment. 
 Initial Context: I was worried that it was mice. 
 Original Ending: I went to the source of the noise. It seemed to becoming from the AC. I opened the blinds to see a group of birds hopping around on the AC. 
 Counterfactual Context: It was coming from the unit next door.
Output (English): I asked the neighbors about the source of the noise. They said it seemed to be coming from the AC. They opened the blinds to see a group of birds hopping around on the AC.