Task: Story Composition
Input (English): Premise: Cassie's Mom packed her lunch and wave her off to school. 
 Initial Context: Cassie was looking forward to her lunch. 
 Original Ending: When lunch time came Cassie couldn't find her lunch anywhere! Then Jen started laughing and told her she had hidden it for a joke. Jen returned Cassie's lunch with a smile. 
 Counterfactual Context: Cassie ate her lunch on the way to school.
Output (English): When lunch time came Cassie had nothing to eat. Jen laughed at her for not having anything to eat. Cassie took Jen's lunch.