Task: Story Composition
Input (English): Premise: Her boss had just left the office. 
 Initial Context: The secretary noticed that he forgot an important document. 
 Original Ending: She rushed after him as he just went down on an elevator. Instead of waiting, she ran down the seven flights of stairs. Out of breath, she met him at the ground floor to deliver the goods. 
 Counterfactual Context: The secretary noticed that he forgot an important document as he walked down the stairs.
Output (English): She rushed after him and went down in the elevator to catch him. Instead of catching him, the elevator stopped lots of times and went slowly. Finally, she met him at the ground floor to deliver the document.