Detailed Instructions: 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: Dominick got out of bed after a long night sleep. Sentence2: He thought he wasn't tired anymore. Sentence3: He curled up on the couch after getting his tummy full. Sentence4: His dog jumped up on the couch with him. Sentence5: They both fell fast asleep.
A:
Dominick, Dog