Task: Story Composition
Input (English): Premise: Bill saw an advertisement for a new Amusement Park on television. 
 Initial Context: Bill decided he would visit the park on his next day off. 
 Original Ending: Upon visiting the park, Bill was shocked by what he saw. Bill realized that the amusement park was a giant water park. Bill was upset that another water park was opened in the area. 
 Counterfactual Context: Bill decided he would never go near the park's crazy rollercoasters.
Output (English): Upon hearing about the park, Bill was shocked by what he heard. Bill realized that the amusement park was a giant water park. Bill was upset that another water park was opened in the area.