Task: Story Composition
Input (English): Premise: I live near one of the Great Lakes. 
 Initial Context: Because of all its open water, the Lake causes strange weather. 
 Original Ending: Last spring, a great windstorm blew straight across the Lake. The windstorm blew a tree down on top of our house. The crash of the tree was so loud that it woke us all up! 
 Counterfactual Context: Even though it's all open water, the Lake never has strange weather.
Output (English): Last spring, a surprise windstorm blew straight across the Lake. The windstorm blew a tree down on top of our house. The crash of the tree was so loud that it woke us all up!