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: It was time to play games with my friends. Sentence2: We had four balls to play with. Sentence3: The best was the blue ball. Sentence4: Unfortunately, my friend Tim wanted to play with it. Sentence5: We both decided to compromise and share the blue ball.
I (myself), Tim, My friends

Sentence1: Ken was a cook. Sentence2: Ken was given an order for a medium rare steak. Sentence3: Ken cooked up the steak nice and rare. Sentence4: He went to serve it to the customers. Sentence5: The customer told him they wanted it well done.
Customer, Ken, Customers

Sentence1: Jessica had always wanted a big wedding with many guests. Sentence2: However, her boyfriend wanted to have a small private wedding. Sentence3: They argued about the wedding for a year. Sentence4: Finally her boyfriend told her he didn't want to be married. Sentence5: Now Jessica worries that she will never have her big wedding.
Jessica, Boyfriend