Task: Story Composition
Input (English): Premise: A man went into his yard with a chainsaw in hand. 
 Initial Context: He found a might oak and began to cut. 
 Original Ending: The saw struggled to make it through the massive trunk. The man pushed hard and the tree fell. He was almost amazed by the roundness of the resulting stump. 
 Counterfactual Context: He found a small branch and began to cut.
Output (English): The saw went right through the branch and into the massive trunk. The man pushed hard and continued cutting through the tree. He was almost amazed by the roundness of the resulting stump.