Task: Story Composition
Input (English): Premise: Sandy felt weak after working out. 
 Initial Context: She told her coach she was dizzy. 
 Original Ending: As she was walking off the court, she fainted. Sandy was rushed to the ER. Sandy had an aneurysm. 
 Counterfactual Context: She was just dehydrated.
Output (English): As she was walking off the court, she fainted. Sandy was rushed to the ER. Sandy was extremely dehydrated.