Task: Story Composition
Input (English): Premise: Eric had a new sled that he couldn't wait to try out. 
 Initial Context: Only there wasn't any snow yet. 
 Original Ending: Finally on Saturday morning he woke up and it had snowed. He called his friend John to meet him on the hill by the school. They took turns riding down the hill on Eric's new sled. 
 Counterfactual Context: They had so much snow that day, he went outside to try it out immediately.
Output (English): Finally he got to try his new sled. He called his friend John to meet him on the hill by the school. They took turns riding down the hill on Eric's new sled.