Q: 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: Timmy found an old boat with water pooled in the bottom. 
 Initial Context: He saw tadpoles swimming in the boat. 
 Original Ending: Timmy told his pals about his find. When they went to see the boat, the tadpoles were gone. Then, they noticed tiny frogs hopping in the grass by the boat. 
 Counterfactual Context: He saw a lot of garbage in the boat.
A:
Timmy told his pals about his find. When they went to see the boat, the garbage was gone. Timmy cleaned it out by himself. 