Task: Story Composition
Input (English): Premise: Jeffrey was chasing a black balloon. 
 Initial Context: He ran up some stairs to try to catch it. 
 Original Ending: As the balloon rose into the air, Jeffrey took a leap. He caught the balloon in mid-air. Then he looked down and fell three stories to the ground. 
 New ending: As the balloon rose into the air, Jeffrey took a leap. He caught the balloon in mid-air. Then he looked down and fell three stories to the ground. 
Output (English): He didn't see the stairs as he was trying to catch it.