Q: 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: Leo was eating cereal in his room, even though it wasn't allowed. Sentence2: He heard his parents coming to his room. Sentence3: He quickly threw the bowl behind a shelf. Sentence4: Later when they were gone he went to retrieve the bowl. Sentence5: Milk had spilled everywhere and he had a huge mess to clean.
A:
Parents, Leo