Task: Story Composition
Input (English): Premise: Mandy's family was finally taking their long-planned beach vacation. 
 Initial Context: Mandy couldn't wait to swim and play. 
 Original Ending: However, a lifeguard announced that a shark had been spotted! In fact, all the nearby beaches were closed due to sharks! Although disappointed, Mandy became interested in marine biology. 
 Counterfactual Context: Mandy hated being in the water.
Output (English): A lifeguard announced that a shark had been spotted! In fact, all the nearby beaches were closed due to sharks! Mandy was interested in the shark and  became interested in marine biology.