Task: Story Composition
Input (English): Premise: Sara went on a hike with her family. 
 Initial Context: They started at the bottom of a tree-covered hill. 
 Original Ending: They walked up and through the hill, past lots of trees. After awhile, they made it to a canyon, where they sat for awhile. When they were done, they hiked back to their car. 
 Counterfactual Context: They started at the bottom of a barren hill.
Output (English): They walked up and through the hill. After a while they made it to a canyon where they sat for a while. When they were done they hiked back to their car.