Task: Story Composition
Input (English): Premise: I was frantic when my dog ran away. 
 Initial Context: I immediately called my neighbors to see if they had seen him. 
 Original Ending: No one had, so I put up posters around town with his name and picture. Someone called me about an hour later to say he was in her yard. When I picked him up, he jumped all over me and gave me doggy kisses. 
 Counterfactual Context: I immediately called my neighbors to see if they had seen him and will never see him again.
Output (English): No one had, so I put up posters around town with his name and picture. Someone called me about an hour later to say he was in her yard. When I went to pick him up, it wasn't my dog that jumped all over me and gave me doggy kisses.