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: Petra came from an undeveloped country. Sentence2: She had never used the internet. Sentence3: When she saw a computer she thought it was evil. Sentence4: The people around her reassured her. Sentence5: Now she has her own website.
Output:
Petra, People