Instructions: 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: Russell was ahead of the curve. Sentence2: He excelled in school and passed all exams with ease. Sentence3: One day, an older man came to Russell's house. Sentence4: He spoke with his parents and then introduced himself to Russell. Sentence5: Russell was offered to go to a school for gifted and talented youth.
Output:
Older man, Parents, Russell