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: Bob thought that the constellations made no sense. Sentence2: He created his own drawings in the stars. Sentence3: He published his new constellations for all to see. Sentence4: Most people loved them but astronomers thought he was nuts. Sentence5: Bob didn't care because he thought they were jealous of his idea.
Output:
Bob, People