Task: Story Composition
Input (English): Premise: Ian loved winter sports. 
 Initial Context: He grew up snowshoeing and skiing. 
 Original Ending: After graduating high school he decided to learn to snowboard. At first Ian had trouble snowboarding. Now he takes several trips every winter to snowboard. 
 Counterfactual Context: He liked to ice skate.
Output (English): After graduating high school he decided to learn to snowboard. At first Ian had trouble snowboarding. Now he takes several trips every winter to snowboard.