Task: Story Composition
Input (English): Premise: Lenny heard chirping as he walked by the holly tree in his yard. 
 Initial Context: He looked down and saw a baby bird on the ground. 
 Original Ending: He carefully lifted it up and placed it in the nest with two others. He was worried the mother bird would reject this baby. But shortly after she came back with worms and fed all three of them. 
 Counterfactual Context: He looked down and saw a mouse on the ground.
Output (English): He carefully lifted it up and placed it in the nest with two others. He was worried the mother mouse would reject this baby. But shortly after she came back with cheese and fed all three of them.