Task: Story Composition
Input (English): Premise: William always wanted to travel to Europe. 
 Initial Context: His family said that airfare was too expensive. 
 Original Ending: William worked all year to save for plane tickets. For Christmas, he surprised his parents with a paid vacation. They will travel to Germany in June. 
 Counterfactual Context: His family gave him tickets for his birthday.
Output (English): William worked all year to save for plane tickets for them as well. For Christmas, he surprised his parents with a paid vacation. They will all travel to Germany in June.