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: The group got together in front of the ice skating ring. Sentence2: When we tried to open the front door, it wouldn't open. Sentence3: The janitor told us that the place is closed for today. Sentence4: However, Pedro proposed that we should get something to eat. Sentence5: Therefore, I drove everyone to a nearby restaurant.

SOLUTION: I (myself), Janitor, Pedro, The group

PROBLEM: Sentence1: Martha sat quietly on the subway as she waited for her stop. Sentence2: An elderly woman boarded the train and held onto the subway rail. Sentence3: Martha felt bad. Sentence4: She stood up and offered her seat to the elderly woman. Sentence5: The woman thanked Martha enthusiastically.

SOLUTION: Woman, Martha, Elderly woman

PROBLEM: Sentence1: The batteries in Manny's clock had gone out. Sentence2: He didn't realize the batteries were dead. Sentence3: Manny had an appointment. Sentence4: He was going by the time on the clock. Sentence5: Manny was late for his appointment.

SOLUTION:
Manny