Task: Story Composition
Input (English): Premise: Chuck sat at the bank of the river fishing. 
 Initial Context: He saw a duck swim nearby. 
 Original Ending: He tossed a piece of his sandwich bread to the duck. A minnow came up to nip at the bread, but was eaten by the duck. Chucked sighed that his new fishing buddy was catching more than him. 
 Counterfactual Context: He saw an alligator swim nearby.
Output (English): He tossed a piece of bread away from him, and the alligator. A minnow came up the nip at the bread, the alligator at him. Chuck sighed, he wouldn't be able to catch anything this this alligator near by.