Task: Story Composition
Input (English): Premise: Tom was prepping for a party. 
 Initial Context: He was helping friends inflate balloons. 
 Original Ending: Right when he had one full a friend snuck up from behind. They popped a balloon right by Tom's ear. Tom freaked out and jumped up. 
 New ending: Right when he was decorating, his friends snuck up from behind with a balloon. They popped a balloon right by Tom's ear. Tom freaked out and jumped up. 
Output (English): He was helping friends decorate a cake.