Task: Story Composition
Input (English): Premise: Jerry was at a festival. 
 Initial Context: It was in the summer and it was very hot. 
 Original Ending: He wanted to buy some water. It turned out to be $8 for a bottle. He unhappily bought one. 
 Counterfactual Context: It was in the summer so he brought plenty of water from home.
Output (English): He wanted to buy some food though. It turned out to be $8 for a tiny sandwich. He unhappily bought one.