Task: Story Composition
Input (English): Premise: A boy was swimming in the ocean. 
 Initial Context: He then heard splashing around him. 
 Original Ending: Then he saw a large fin breach the water. The boy swam as fast as he could toward shore. The boy finally made it to the beach safety away from the shark. 
 Counterfactual Context: He then got tired and got out.
Output (English): He saw a large fin breach the water. The boy told his friends to swim as fast as they could toward shore. They finally made it to the beach safety away from the shark.