Task: Story Composition
Input (English): Premise: Sally had several dogs. 
 Initial Context: One of them named Fido was a real pain. 
 Original Ending: He would always bite people and try to pounce on them. Then one day Fido met a large Great Dane. Fido doesn't mess with things larger than he is anymore. 
 Counterfactual Context: One of them named Fido was a real sweetheart.
Output (English): He would always lick people and try to snuggle next to them. Then one day Fido met a large Great Dane. Fido became best friends with the large dog.