Task: Story Composition
Input (English): Premise: Lawrence and his buddies were going to float down a river. 
 Initial Context: They showed up at the river banks ready to go. 
 Original Ending: They all hopped in their tubes and started floating. They went several miles, having a good time all the while. They all agreed it was a great trip down the river. 
 Counterfactual Context: Lawrence was the only one who showed up at the river bank.
Output (English): He hopped in their tubes and started floating. He went several miles, having a good time all the while. It was a great trip down the river, he thought to himself.