Given the task definition and input, reply with output. Given a premise, an initial context, an original ending, and a counterfactual context, the task is to generate a new story ending aligned with the counterfactual context and as close to the original ending as possible. Each instance consists of a five-sentence story. The premise is the first sentence of a story, and the second sentence, which is the initial context, provides more information about the story's context and the story's general plot. The original ending is the last three sentences of the story. Also, a counterfactual context is a slight modification to the initial context. You should write a new story ending that edits the original story ending as little as possible to regain coherence with the counterfactual context. To sum up, you should write the last three sentences of a story based on the premise(first sentence) and the counterfactual context(second sentence) of the story.

Premise: Adam was excited to set up an aquarium. 
 Initial Context: He enjoyed choosing fish to fill the new tank. 
 Original Ending: Adam chose many fish, including one that was large and showy. He dumped the fish in the tank and watched them swim around. Soon, the small fish covered the large one and began biting it. 
 Counterfactual Context: There was only one fish he wanted in his tank.

Adam chose  one that was large and showy. He dumped the fish in the tank and watched it swim around. The large fish was all alone in its tank. 