Task: Story Composition
Input (English): Premise: Harris sat next to Cassie on the bus. 
 Initial Context: They had never met before. 
 Original Ending: Harris introduced himself. They talked during the entire ride. Now they're a couple. 
 Counterfactual Context: They are best friends.
Output (English): Harris said he liked her. They talked during the entire ride. Now they're a couple.