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: Rob was being chased by an orphan child. Sentence2: He ran through the streets screaming for help. Sentence3: He wandered into an alley, where the orphan cornered him. Sentence4: The orphan beat him up. Sentence5: He stole Rob's shoes and shirt.
Rob