Task: Story Composition
Input (English): Premise: Keith was trying to impress his boyfriend. 
 Initial Context: He flexed his arms and tried to lift their car. 
 Original Ending: Unfortunately, it had been left in neutral with the parking brake off. The car rolled backwards right over Keith. His boyfriend watched helplessly as he was crushed under it. 
 Counterfactual Context: He flexed his arms and tried to lift their motorcycle.
Output (English): Unfortunately, it had been left in neutral with the parking brake off. The motorcycle rolled backwards right over Keith. His boyfriend watched helplessly as he was crushed under it.