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: Sarah works in an biomedical research lab. Sentence2: She works very long hours and gets very tired. Sentence3: Slowly, she accumulates a lot of data. Sentence4: Soon, she publishes a paper in a prestigious journal. Sentence5: Her paper is cited many times and is considered important work.
Sarah