Task: Story Composition
Input (English): Premise: Mindy bought a fish on impulse at a grocery store. 
 Initial Context: Despite the impulse she grew to enjoy her fish. 
 Original Ending: One day she noticed her fish floating at the top of its bowl. Saddened, she did research and realized she fed it the wrong food. Mindy never bought a pet on impulse again. 
 Counterfactual Context: She tripped and fell on the way home and the fish fell into the sewer.
Output (English): One day she noticed her new fish floating at the top of its bowl. Saddened, she did research and realized she fed it the wrong food. Mindy never bought a pet on impulse again.