Given the task definition and input, reply with output. 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: Brad worked out all of the time but was not gaining muscle. 
 Initial Context: He decided to go to a trainer for help and advice. 
 Original Ending: The trainer told brad he needed to eat more protein. Brad started to eat more protein and saw more muscle gains. Brad was happy with the trainer's advice. 
 Counterfactual Context: Brad read online he needed protein powder.

He ordered a large container of protein powder online. Brad started to eat more protein and saw more muscle gains. Brad was happy with his decision. 