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: Cam played flag football every Saturday morning in the fall. Sentence2: His old football cleats were too small, so he went out to buy new ones. Sentence3: He decided to search at a local consignment shop. Sentence4: While there, he tried on several different brands. Sentence5: He bought a pair of Nike cleats for his upcoming season.
Cam