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: Frank works for a kidney dialysis company. Sentence2: They pay their employees poorly. Sentence3: The employer says their employees should be proud to work there. Sentence4: The employees started seeking better paying jobs. Sentence5: The employer was left very confused.
A:
Frank, Employees