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: My friend came over and we hid Easter eggs. Sentence2: We hid a very special egg with a prize inside. Sentence3: Then we invited all our other friends over to hunt the eggs. Sentence4: Everyone found many eggs, and one friend found the prize. Sentence5: That friend was the happiest of all.
Output:
Everyone, Friends, Friend