TASK DEFINITION: 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.
PROBLEM: Sentence1: Sara wanted to make her community more eco-friendly. Sentence2: She started a recycling program. Sentence3: There, she taught people how to recycle various types of items. Sentence4: Soon her neighbors were recycling almost everything they could! Sentence5: Sara felt very good about her environmental impact.

SOLUTION: Sara, Her neighbors, People

PROBLEM: 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.

SOLUTION: Cathy, Dolphins

PROBLEM: Sentence1: I screamed at my mother, not meaning to lose my cool. Sentence2: I was fed up with the years of ambiguity and hiding the truth from me. Sentence3: I told her she could have protected me and chose not to. Sentence4: I told her she could have not beaten me, but did so anyway. Sentence5: She told me she had problems and I should pity her instead of angry.

SOLUTION:
I (myself), Mother