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: Alan was the coach of a little league baseball team. Sentence2: His son was on the team. Sentence3: Alan was very excited because the team was doing well. Sentence4: He chose to enter them into the little league World Series. Sentence5: Alan took his team to the World Series and they won.
His son, Alan, Team

Sentence1: Anna loved pandas. Sentence2: Her zoo was having a panda exhibit. Sentence3: She was so excited! Sentence4: She went the first day the exhibit opened. Sentence5: She had such a wonderful time!
Anna, Zoo

Sentence1: Mary was learning to play her piano but not getting better. Sentence2: She talked to her teacher who explained that practice makes perfect. Sentence3: The teacher went over multiple lessons and helped Mary out. Sentence4: Mary went home and began playing but still had trouble. Sentence5: She smashed the piano keys with her hands and broke a finger.
Mary, Teacher