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: My wife hates her job. Sentence2: She is a teacher to sixth graders and she always gets headaches. Sentence3: She complains that they are way to loud and don't listen. Sentence4: She asked the principal if she could teach at the high school level. Sentence5: The principal allowed her to switch to the junior year, she's happy.

A: I (myself), School, Principal, Sixth graders, Wife
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Q: Sentence1: Del and his friends would have speed-writing competitions. Sentence2: It began as just doing simultaneous quickwrites. Sentence3: But then they started doing time trials. Sentence4: They wanted to see who could write a full story the fastest. Sentence5: Del won in perpetuity when he wrote a full story, one sentence long.

A: His friends, Del
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Q: Sentence1: Cathy recently took a trip to the Bahamas. Sentence2: While in the Bahamas, Cathy decided to swim with dolphins. Sentence3: Cathy was scared that the dolphins would attack her. Sentence4: However, Cathy was surprised at how docile the dolphins were. Sentence5: Cathy was so glad she took the chance to swim with the dolphins.

A:
Cathy, Dolphins
****