Task: Story Composition
Input (English): Premise: Billy was a student at a large state University. 
 Initial Context: He went to the university gym for the first time as a freshman. 
 Original Ending: He saw a large climbing wall. He decided to climb the wall. He went on to become a famous solo free rock climber. 
 Counterfactual Context: He knew the university had a gym but he never went to it.
Output (English): He heard there was a large climbing wall. He thought he'd go try to climb the wall. He went on to become a famous solo free rock climber.