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: Warren didn't like beets and told his mom repeatedly. Sentence2: But as she never listened, he had some on his plate for dinner. Sentence3: He tried to give them to his dog. Sentence4: The dog sniffed them and walked away. Sentence5: Warren refused to eat the beets as his dog didn't want them either.

Answer: Dog, Mom, Warren

Question: Sentence1: Jeff is addicted to working out and he goes everyday. Sentence2: He just started a new job that has him working long hours. Sentence3: These long hours prevent him from being able to go to the gym. Sentence4: By the time Jeff gets off work the gym is closed. Sentence5: Jeff went out and bought all the stuff he needs to work out athome.

Answer: Jeff

Question: Sentence1: Shana had been living with her boyfriend for a year. Sentence2: With how busy they were they hadn't gone out a single time. Sentence3: Now it was New Years and Shana expected a quiet night at home. Sentence4: Suddenly her boyfriend asked her to get ready for a surprise. Sentence5: He took her out to a romantic dinner and party.

Answer:
Her boyfriend, Shana