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.
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Question: Sentence1: Tom loved nuts. Sentence2: He was very frugal. Sentence3: He went shopping at the grocery store. Sentence4: He saw a huge discount on bulk walnuts for sale. Sentence5: He stocked up on walnuts.

Answer: Tom

Question: Sentence1: When I was little I used to chew my fingernails as a habit. Sentence2: My mom told me if I continued doing this it would make me really fat. Sentence3: Her plan worked, as my fear of getting huge stopped my nasty habit. Sentence4: Well, one day we saw our neighbor in the store, being quite pregnant. Sentence5: I pointed at her belly, saying I knew what she had been doing!

Answer: I (myself), Neighbor, Mom

Question: Sentence1: Dave always admired his older brother. Sentence2: He would often wish that he was as cool as his brother. Sentence3: Eventually Dave grew up and forged his own path in life. Sentence4: Dave became a doctor after many Year's of hard work. Sentence5: Dave's brother now looks up to him.

Answer:
Older brother, Dave