Task: Story Composition
Input (English): Premise: Casey was in the car with his parents. 
 Initial Context: He wasn't sure where they were going. 
 Original Ending: Suddenly, they pulled into a parking lot. He looked around and saw animal decorations. He realized they were at the zoo! 
 New ending: Suddenly, they pulled into a parking lot. He looked around and saw animal decorations. He realized they were at the zoo already! 
Output (English): Casey knew they were going to the zoo.