Task: Story Composition
Input (English): Premise: John wanted to win a contest. 
 Initial Context: But he was not very good at math or reading. 
 Original Ending: Then he found a contest he could compete in. It was a hot dog eating contest! John ate fifteen hot dogs and won first prize! 
 Counterfactual Context: He was very good at math and reading.
Output (English): Then his friends found a contest  to compete in. It was a hot dog eating contest! John ate one hot dog and won last  prize!