Task: Story Composition
Input (English): Premise: Jack went to the museum with his grandpa. 
 Initial Context: He saw dinosaurs, nature exhibits and tigers. 
 Original Ending: After the museum They went to get hot  dogs for lunch. Jack told his dad what he liked about the museum. Jack and his dad had a fun day out. 
 Counterfactual Context: He saw lots of weird things that made him lose his appetite.
Output (English): After the museum he decided not to get hot dogs for lunch. Jack told his dad what he liked about the museum. Jack and his dad had a fun day out.