Task: Story Composition
Input (English): Premise: My family has had many dogs. 
 Initial Context: For some reason, they seem to always be friendly. 
 Original Ending: One time, one of the dogs ate the other dog's puppies. This made the mother dog mad. From then on, we had to keep those two dogs separated. 
 Counterfactual Context: For some reason, they were always mean.
Output (English): One time, one of the dogs ate the other dog's puppies. This made the mother dog turn mean. From then on, we had to keep those two dogs separated.