Task: Story Composition
Input (English): Premise: Mark went hunting with some friends. 
 Initial Context: He was sitting in the woods when a mountain lion came up to him. 
 Original Ending: He was very scared. He sat so still until the lion went away. He had never been so scared before. 
 Counterfactual Context: He was sitting in the woods when a kitten came up to him.
Output (English): He was very excited. He played with the kitten for an hour. He had never been so happy before.