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.
Q: Sentence1: Gordon bought a car from a friend. Sentence2: They both worked on restoring the car. Sentence3: After the friends restored the car, they took it to a show. Sentence4: Gordon and his friend decided to start a business. Sentence5: The friends now restore cars for a living.
A:
Gordon, Friend