You will be given a definition of a task first, then some input of the task.
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.

Sentence1: Ron had wondered if he could ever go back home. Sentence2: He was released early and made his way to where he grew up. Sentence3: When arrived home it seemed cold and different. Sentence4: He drove by the store he robbed and it was still opened. Sentence5: He knew he needed to make a lot of changes.
Output:
Ron