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: Andy loved playing with his cowboy toys. Sentence2: As Andy got older, he grew tired of them. Sentence3: He became more interested in electronics. Sentence4: Andy's mom asked him if he wanted to sell anything at a garage sale. Sentence5: Andy said he'd be happy to get rid of his cowboy toys.
A:
Andy, Mom, Cowboy