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: Easton had a very important test coming up. Sentence2: He studied very hard the night before. Sentence3: He did not go to bed until two in the morning. Sentence4: Easton overslept the next morning. Sentence5: He missed his test.
Easton