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: William lived in Montana on his family's ranch. 
 Initial Context: One day, wolves attacked his precious livestock. 
 Original Ending: He vowed to kill all the wolves. William ran into the forest, following the howls of the wolves. He never found them, and walked home defeated. 
 Counterfactual Context: One day, men attacked his precious livestock.
He vowed to kill all the men who attacked his livestock. William ran into the forest, following the tracks of the poachers. He never found them, and walked home defeated. 