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: Steve wore his new jeans to school on Monday. Sentence2: He wanted to show them off to the entire school. Sentence3: After getting his tray at lunch, he walked slowly to his table. Sentence4: He didn't see Carl rushing from the opposite direction. Sentence5: Carl bumped into Steve and covered his jeans with mash potatoes.
A:
Steve, Carl