Task: Story Composition
Input (English): Premise: I put a small plastic spider in my brother's tea as a prank. 
 Initial Context: The following day, he put the spider in my underwear drawer. 
 Original Ending: I decided I needed really serious revenge. I put the plastic spider just inside the shower before he got in. To my horror, he screamed and slipped, breaking his collarbone! 
 Counterfactual Context: My brother decided to be the bigger man and not prank me back.
Output (English): I decided I needed really life changes. I put the plastic spider in the trash. To my surprise, I saw it later when my brother changed his mind and pranked me!