Task: Story Composition
Input (English): Premise: A large storm blew through town. 
 Initial Context: The wind was so strong it uprooted a large maple tree. 
 Original Ending: The tree fell over on the bridge into town. The bridge collapsed from the tree. Later an engineer determined that it could not be repaired at all. 
 Counterfactual Context: The wind was so strong it broke off a sign.
Output (English): The sign fell over on the bridge into town. The bridge collapsed from the sign. Later an engineer determined that it could not be repaired at all.