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: Dan had a very fine cobblestone walkway. Sentence2: Some of the stones had started to jut out unevenly. Sentence3: Dan got out a shovel and leveled the dirt under them. Sentence4: He tamped them down gently to make them all match. Sentence5: Now the stones in Dan's walkway are all perfectly even.

Answer: Dan

Question: Sentence1: Tina had sampled her mom's wine last night. Sentence2: Her mom had caught her and grounded her. Sentence3: But the next morning, Tina woke with a terrible hangover. Sentence4: She thought that was a far worse punishment than the grounding. Sentence5: Tina vowed never to drink alcohol again!

Answer: Tina, Her mom

Question: Sentence1: Jeff was sleeping in his bed. Sentence2: He heard some noise in his backyard. Sentence3: Jeff hopped out of his bed and went to his back yard. Sentence4: He looked everywhere and noticed something big. Sentence5: It was a raccoon looking for food.

Answer:
Raccoon, Jeff