Instructions: In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.
Input: Sentence1: The man decided to get in shape. Sentence2: He joined the new gym in town. Sentence3: They taught him how to lift weights. Sentence4: His trainer encouraged him a lot. Sentence5: Soon, the man had lost weight and toned up!
Output:
His trainer, The man