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.

Sentence1: Romeo thought he was the fastest kid at school. Sentence2: Romeo challenged his friend to a race on the track. Sentence3: Both of the racers lined up and prepared to take off! Sentence4: However, Romeo's foot slipped and he ended up tripping himself! Sentence5: He skinned his knee badly and was taken away to the nurse.
Racers, Friend, Romeo

Sentence1: Dean's roof was damaged in the recent wind storm. Sentence2: He decided to fix the roof himself. Sentence3: He worked on it for two weeks before he asked for help. Sentence4: His friend Max came to help Todd finish the roofing project. Sentence5: Together they finished the roof and it looked amazing.
Max, Dean

Sentence1: The man went golfing with a friend. Sentence2: The man lost all of his balls in the trees. Sentence3: He asked his friend for some balls. Sentence4: His friend did not have any balls for him to borrow. Sentence5: The man watched his friend finish the round of golf.
Friend, Man