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: On a sidewalk i saw an old man carrying his heavy bag. Sentence2: I helped him carry his bag along to the bus where he rides. Sentence3: He bid thanks and he wants to give me money. Sentence4: I didn't accept it because i'm not expecting anything in return. Sentence5: Then he said he admires me of my good deeds.
[EX A]: I (myself), Old man

[EX Q]: Sentence1: The sink in my bathroom broke. Sentence2: I decided that I should fix it myself. Sentence3: After one hour, the sink looked worse than before. Sentence4: I finally decided to call a professional plumber. Sentence5: The plumber fixed the sink in ten minutes.
[EX A]: I (myself), Professional plumber

[EX Q]: Sentence1: Bob was never very good at free throws. Sentence2: He was always too short to play basketball too. Sentence3: So, he decided to practice. Sentence4: After several months, he can make 99 out of 100 free throws! Sentence5: Although he's still short, he's now very good at free throws.
[EX A]:
Bob