Task: Story Composition
Input (English): Premise: Ava went to the butterfly farm. 
 Initial Context: She sprayed sugar on her palm. 
 Original Ending: Then she held her hand out. Butterflies came and landed in her palm! Ava was so pleased she grinned widely. 
 Counterfactual Context: She sprayed vinegar on her palm.
Output (English): Then she held her hand out. Butterflies avoided landing in her palm! Ava was so disappointed she cried.