Task: Story Composition
Input (English): Premise: Sal was training to enter a marathon. 
 Initial Context: He jogged everyday at the local park. 
 Original Ending: Sal began to start watching his diet. Sal was in his best shape ever on the day of the marathon. Sal was in the top twenty finishers of the race. 
 Counterfactual Context: When he was jogging at the park, he fell and busted his knee and had to withdraw from the marathon.
Output (English): Sal began to start watching his diet. Sal was in okay shape on the day of the marathon. Sal thought he could have been in the top twenty finishers of the race.