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.

[Q]: Sentence1: Sam wanted to learn how to read. Sentence2: He thought his friends would mock his illiteracy. Sentence3: But when they found out, they were all very kind. Sentence4: They even volunteered to teach him his letters. Sentence5: After months of studying, Sam became a great reader!
[A]: His friends, Sam

[Q]: Sentence1: Sara and Joseph were planning their wedding. Sentence2: They were on a tight budget. Sentence3: They couldn't afford a three tiered cake. Sentence4: Sara ordered a one tier cake and baked matching cupcakes. Sentence5: The cupcakes were a big hit amongst the guest.
[A]: Joseph, Sara, Guest

[Q]: Sentence1: Bobby loved to play baseball. Sentence2: Unfortunately he was not very good at bat. Sentence3: His coach suggested he get his eyes checked. Sentence4: He wasn't seeing the ball well because he needed glasses! Sentence5: He was a much better player once he got his glasses.
[A]:
His coach, Bobby