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: Darrel was sleeping peacefully. Sentence2: He had worked for 12 hours and was exhausted! Sentence3: He felt something wet and sticky on his face. Sentence4: His dog had missed him while he was at work. Sentence5: The dog wouldn't stop giving him kisses!
Darrel, Dog

Sentence1: Maria was very sad. Sentence2: She used Kleenex to dab at her tears. Sentence3: When she'd used the whole box, she got another out of the cabinet. Sentence4: She blew her nose a few times when she was done crying. Sentence5: The Kleenex were all soaked.
Maria

Sentence1: I was babysitting my four year old brother. Sentence2: He began throwing things everywhere. Sentence3: He hit me in the eye with a plate. Sentence4: I put him in time out for five minutes. Sentence5: After that he was well behaved.
I (myself), Brother