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: I signed up for an eating contest. Sentence2: I starved myself for two days before the contest. Sentence3: Alas, I became very sick due to the starvation. Sentence4: I had to eat a meal before the contest. Sentence5: Thus, I lost the contest because I had eaten beforehand.
I (myself)