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.
Q: Sentence1: Bryan was at home one day and decided to plant a tree in his yard. Sentence2: He went out to home depot and bought plenty of supplies. Sentence3: After buy the necessary supplies and tree, he went home. Sentence4: He planted it in the center of his lawn. Sentence5: He felt satisfied with his work and took a nap.
A:
Bryan