Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Premise: Chuck was frustrated that his new pet dog would not behave. 
 Initial Context: Chuck couldn't seem to teach the dog commands or get it to obey. 
 Original Ending: Somebody suggested that Chuck bring the dog to an obedience trainer. That turned out to be an excellent idea. The dog now responds when told to come, sit, stay and lie down. 
 Counterfactual Context: Chuck started beating it.
Student:
Somebody suggested that Chuck stop beating his dog. That turned out to be an excellent idea. The dog now responds when told to come, sit, stay and lie down. 