Task: Story Composition
Input (English): Premise: Today is Sarah's 5th birthday! 
 Initial Context: Her parents threw her a party at her favorite Mexican restaurant. 
 Original Ending: A balloon artist made balloon hats for Sara and her friends. Sara got lots of presents. The birthday party was a great success. 
 Counterfactual Context: Her parents felt horrible when no one showed up.
Output (English): A balloon artist made balloon hats for Sara and her parents. Sara got a few presents. The birthday party was not the worst.