Task: Story Composition
Input (English): Premise: Joel bought a block of cheese. 
 Initial Context: He packed the cheese into his backpack. 
 Original Ending: He carried his backpack up a mountain. He took out his cheese. His cheese was all melted. 
 Counterfactual Context: He ate the entire block of cheese on the bus.
Output (English): He carried his backpack up a mountain. He took out his backpack. His cheese was all gone.