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: The boy asked for permission. Sentence2: Permission was denied. Sentence3: The boy did it anyways. Sentence4: He got caught. Sentence5: The boy was punished.
Boy

Sentence1: Susie was unhappy. Sentence2: She did not want to be in her relationship anymore. Sentence3: She didn't think her boyfriend was attentive. Sentence4: She decided to break it off. Sentence5: Susie was happy to break it off.
Susie, Boyfriend

Sentence1: Kelsi really loved dogs. Sentence2: However one day she was bitten by her poodle. Sentence3: The poodle was brand new and needed to be trained. Sentence4: Kelsi then trained the dog for a few weeks. Sentence5: She never got bitten again.
Dogs, Kelsi, Her poodle