Detailed 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.
Q: Sentence1: Joe bought a new set of tires for his car. Sentence2: He took off all the old tires and put the new ones on. Sentence3: Joe stacked the old tires in his front yard. Sentence4: He made a sign to let others know that they could have the tires free. Sentence5: One hour later a man came by and took away all of the free tires.
A:
A man, Joe