Task: Story Composition
Input (English): Premise: Jill gets a call from her brother asking her if she's ready. 
 Initial Context: She has no idea what he is talking about. 
 Original Ending: She realizes that she forgot their parents' 30th Anniversary party. She rushes to get ready. Her brother lets her add her name to the gift that he got them. 
 Counterfactual Context: She knew exactly what he was talking about.
Output (English): She was almost late for their parents' 30th Anniversary party. She rushes to get ready. Her brother lets her add her name to the gift that he got them.