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: A strange lady walked into the club. Sentence2: She flirted with any man in sight and was asking for free drinks. Sentence3: Due to her behavior, the security guards came. Sentence4: They escorted her to the front of the club. Sentence5: She tried fighting back but she couldn't get inside the club again.

SOLUTION: Security guards, Strange lady, Any man

PROBLEM: Sentence1: Yusuf was startled by a loud knocking at his door at a late hour. Sentence2: He wasn't expecting company, and grabbed his gun. Sentence3: A shivering woman greeted him when he opened the door. Sentence4: She had hit black ice and her car had slid off the road. Sentence5: Yusuf called a tow truck for her, and let her warm up in his house.

SOLUTION: Yusuf, Woman

PROBLEM: Sentence1: Tom visited his mom one day. Sentence2: He noticed a lot of his old toys in his old room. Sentence3: There were several boxes. Sentence4: Tom decided to donate them to charity. Sentence5: He took them to goodwill.

SOLUTION:
Tom, Mom