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: Ron really wanted to join the baseball team. Sentence2: But he could not throw or hit a ball at all! Sentence3: Then the coach had him catch a few. Sentence4: Ron was a natural! Sentence5: He made the team right away!
Output:
Coach, Ron