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.

[EX Q]: Sentence1: Bob loved to eat fat. Sentence2: His friends thought he ate too much. Sentence3: Indeed, the fat increased Bob's cholesterol intake dramatically. Sentence4: Bob's arteries were becoming clogged. Sentence5: After many years, Bob had a heart attack and died.
[EX A]: Friends, Bob

[EX Q]: Sentence1: Ed's dream was to be a published author. Sentence2: He sent in many manuscripts to different publishers. Sentence3: Every time, his work was rejected. Sentence4: He decided to try one last time to get published. Sentence5: On his last try, the publisher finally accepted his work!
[EX A]: Ed, Publisher

[EX Q]: Sentence1: Joy doesn't know how to play chess but has always wanted to learn. Sentence2: Her grandfather has a chess board and knows how to play. Sentence3: Joy calls him up and he tells her to come over to play. Sentence4: He teaches Joy to play chess and they play for hours. Sentence5: Joy got to learn a new game and bond with her grandfather.
[EX A]:
Joy, Her grandfather