You will be given a definition of a task first, then some input of the task.
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: Arthur King wrote three best sellers, now he's bored. Sentence2: He saw an ad online about a community of pick-up artist. Sentence3: He paid for a session of pick-up a girl training. Sentence4: First he sat in on a lecture about how to flirt with girls. Sentence5: Next he went to a club to practice what her learned.
Output:
Arthur king, Girls, Girl, Community