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: Jane decided to take a trip to the Caribbean. Sentence2: While on her trip, Jane was bitten by a mosquito. Sentence3: Jane started to feel ill after being bitten. Sentence4: Jane went to the hospital upon her return home. Sentence5: Jane was diagnosed with the Zika virus.

SOLUTION: Jane, Mosquito

PROBLEM: Sentence1: Tom was at the beach with friends. Sentence2: He had too much fun and forgot to put sunscreen on. Sentence3: Within hours someone pointed out how red he was. Sentence4: Tom was severely sunburned. Sentence5: He had to leave and get special healing lotion.

SOLUTION: Friends, Someone, Tom

PROBLEM: Sentence1: Sam saw cockroaches in his apartment. Sentence2: So he called an exterminator. Sentence3: Sam returned to his apartment after the exterminator finished. Sentence4: There were no more cockroaches. Sentence5: Sam was happy with the service that the exterminator provided.

SOLUTION:
Cockroaches, Exterminator, Sam