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.

Sentence1: John was at home thinking about what to eat for dinner. Sentence2: He went to the fridge and looked inside. Sentence3: He saw that he had some fish. Sentence4: John cooked the fish in a frying pan. Sentence5: He ate the fish for dinner.
John

Sentence1: Marcus was playing his guitar at school. Sentence2: His friend Matthew approached him and asked about the music. Sentence3: Soon they were in a heated conversation about their music tastes. Sentence4: The duo decided that they should collaborate on some music. Sentence5: The resulting album was very popular with all of their friends.
Marcus, Their friends, Matthew

Sentence1: Rita was waiting impatiently. Sentence2: Her new couch would be delivered today! Sentence3: It was a beautiful leather couch. Sentence4: She couldn't wait to put it in her living room! Sentence5: She had saved for months for this amazing couch.
Rita