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.
Input: Sentence1: Nina was tired of hearing cat calls when she walked on the street. Sentence2: One day, she decided to wear baggy pants and shirt. Sentence3: She walked by the construction site and waited. Sentence4: No one whistled at her. Sentence5: Offended, she called the workers bad names for ignoring her.
Output:
Nina, The workers