TASK DEFINITION: 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.
PROBLEM: 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.

SOLUTION: I (myself), Tim, My friends

PROBLEM: Sentence1: Nola was slim and pretty. Sentence2: She wanted to be a model. Sentence3: She contacted an agency and showed them some photos. Sentence4: But to her surprise, the agency did not sign her! Sentence5: They told Nola she was too short to model.

SOLUTION: Agency, Nola

PROBLEM: Sentence1: Nick had several boxes of documents to destroy. Sentence2: He tried a shredder, but it became jammed. Sentence3: Nick did the only other thing he could. Sentence4: He tossed the documents into his backyard fire pit. Sentence5: Nick set fire to them.

SOLUTION:
Nick