Task: Story Composition
Input (English): Premise: Brian's parents decided the lawn needed to be mowed. 
 Initial Context: He got out the lawnmower and went to work! 
 Original Ending: All of a sudden it ran out of gas. He quickly drove to the gas station and fueled it up. Brian finished his lawn work and was rewarded with twenty dollars. 
 Counterfactual Context: They hired a gardener to mow the lawn.
Output (English): All of a sudden the gardener quit! Brian quickly got out his own lawnmower to do the work. Brian finished his lawn work and was rewarded with twenty dollars by his parents.