Task: Story Composition
Input (English): Premise: Mike walked to his favorite tree with a rope. 
 Initial Context: He threw it over a study branch and tied a knot. 
 Original Ending: Mike tied a seat to the free end of the rope. He then began to swing on the tree all afternoon. When he was done, Mike untied his swing from the tree. 
 Counterfactual Context: He could not throw the rope high enough to get it over a branch.
Output (English): He had to climb the tree so he could get the rope over. He tied a seat to the rope. He then began to swing on the tree all afternoon.