Task: Story Composition
Input (English): Premise: My friend Sue flew from Boston to Florida last week. 
 Initial Context: Her mother turned 80. 
 Original Ending: Sue and her brother were supposed to go. Her brother got sick, so Sue went alone. Sue was glad to surprise her mom. 
 Counterfactual Context: Her mother had passed away.
Output (English): Sue and her brother were supposed to go. Her brother got sick, so Sue went alone. Sue was sad to have to mourn her mom.