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: On top of the rock, the lion surveyed his domain. 
 Initial Context: He sensed the coming of prey long before he saw it. 
 Original Ending: As the warthog came around the bend, the lion pounced. Fur flew and screeches filled the air. From the top of the rock, the well fed lion surveyed his domain. 
 Counterfactual Context: He could not sense prey as he was sick.
Student:
He could see the warthog come around the bend, and then the lion pounced. Fur flew and screeches filled the air. From the top of the rock, the well fed lion rested. 