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: Sue wanted to get in shape. Sentence2: She signed up for the half marathon. Sentence3: Sue ran everyday after work. Sentence4: Sue was eventually able to run for miles at a time. Sentence5: She was able to successfully complete the half marathon.
A:
Sue