Task: Story Composition
Input (English): Premise: Anna lost her keys one day. 
 Initial Context: She was worried! 
 Original Ending: She hurried to retrace her steps. At her coffee shop, the barista handed her a keychain. Someone had turned in her keys! 
 Counterfactual Context: She knew they were somewhere in the house so she wasn't worried.
Output (English): She hurried to retrace her steps. In her kitchen, her boyfriend handed her a keychain. He had found her keys!