You will be given a definition of a task first, then some input of the task.
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: Evan wanted to teach his dog to do tricks. 
 Initial Context: But no matter how many times he released commands, it didn't work. 
 Original Ending: His dog just wouldn't listen! Then a friend suggested he reward the dog with treats when it obeyed. With positive reinforcement, Evan's dog was soon doing lots of tricks! 
 Counterfactual Context: After practicing many times, he gave commands and they worked perfectly.
Output:
His dog just wouldn't listen at first! Then a friend suggested he reward the dog with treats when it obeyed. With positive reinforcement, Evan's dog was soon doing lots of tricks! 