Task: Story Composition
Input (English): Premise: Angela had a horse lunchbox that she loved. 
 Initial Context: It was blue with a black stallion on the cover. 
 Original Ending: She brought it to school with pride. Many of her classmates complimented her cool lunchbox. Angela never wanted to let go of it. 
 Counterfactual Context: She left it at school one day and it got stolen.
Output (English): She had brought it to school with pride. Many of her classmates complimented her cool lunchbox. Angela wished she had never let go of it.