Task: Story Composition
Input (English): Premise: Allie went on the highest roller coaster. 
 Initial Context: She wanted to go on it forever. 
 Original Ending: Finally she took a seat on it. All of the sudden, she got stuck. They had to wait an hour to be rescued. 
 Counterfactual Context: Near the end of the ride, the hand rail started to come loose.
Output (English): Finally she screamed for help. All of the sudden, it broke off. They had to wait an hour to be rescued.