Task: Story Composition
Input (English): Premise: Joy had a big pond her in back yard. 
 Initial Context: She found a turtle sunning himself by the water. 
 Original Ending: She fed it a carrot. The turtle climbed back in the water and swam away. She looked for it every day but never saw it again. 
 Counterfactual Context: She found a duck swimming by himself in the water.
Output (English): She fed it a carrot. The duck swam away. She looked for it every day but never saw it again.