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: Ida took her son to a petting zoo. 
 Initial Context: There, he pet cows and goats, sheep and rabbits. 
 Original Ending: He even saw a cow being milked! When he got home, all he could talk about was the zoo! Ida was glad she'd given her son such a wonderful time. 
 Counterfactual Context: There, he pet a goat, until he had a bad allergic reaction and had to leave before seeing any other animals.
Earlier, he even saw a cow being milked! When he got home, all he could talk about was the zoo! Ida was glad she'd given her son such a wonderful time anyhow. 