Given the task definition and input, reply with output. 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: It was Ron's day off and he had a lot to do. Sentence2: He had to thoroughly clean his house. Sentence3: He had to wash his clothes and his blankets. Sentence4: Go grocery shopping and fix his car. Sentence5: But Ron was tired and slept and laid in bed all day.
Ron