Task: Story Composition
Input (English): Premise: Rick wanted to build a raft to float in his lake. 
 Initial Context: He gathered an air mattress and some duct tape. 
 Original Ending: He pumped up the mattress and taped some oars on to the side. Rick tossed it in the lake and jumped on. He sailed into the center and felt at peace. 
 Counterfactual Context: He bought a used canoe instead.
Output (English): He fixed up the canoe and taped some oars on to the side. Rick tossed it in the lake and jumped on. He sailed into the center and felt at peace.