Task: Story Composition
Input (English): Premise: Em found a pregnant cat lost on the street one day. 
 Initial Context: She had always wanted a cat more than anything! 
 Original Ending: But she decided to do the right thing and call the cat's owner. The owner was so happy, she promised Me one of the kittens. So Em finally got her cat after all! 
 New ending: So she decided to do the right thing and call the cat's owner. The owner was so happy, she promised Me one of the kittens. So Em finally got a cat! 
Output (English): She had always wanted to return a lost cat to its rightful owner.