Task: Story Composition
Input (English): Premise: David went to china with his girlfriend. 
 Initial Context: They went to beijing first. 
 Original Ending: They tried to climb the great wall. David's girlfriend wanted to stop after 20 minutes in. They ended up leaving. 
 Counterfactual Context: They climbed the Great Wall of China together.
Output (English): They tried to climb the great wall quickly. But David's girlfriend wanted to stop to rest after 20 minutes. They ended up leaving.