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: Julie was impressed that Ricardo liked her, he was rich. Sentence2: She wondered if he liked her enough to marry her. Sentence3: One day in Ricardo's mansion, he told Julie to be open minded. Sentence4: Then he said she would never be his only girlfriend. Sentence5: That answered Julie's question about is he'd marry her.
Output:
Julie, Ricardo