Given the task definition and input, reply with output. 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: A sob escaped Cory's lips. Sentence2: He hadn't wanted to give a talk at his dad's funeral. Sentence3: He persisted, and made it through the speech he'd prepared. Sentence4: Cory was relieved when it was over. Sentence5: When he got home, he curled into a ball in the corner and cried.
Dad, Cory