Definition: 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.
Input: Sentence1: Teddy had a nightmare. Sentence2: He woke up and couldn't go back to sleep. Sentence3: Teddy crept into his parents bedroom. Sentence4: He climbed into bed with them. Sentence5: Teddy fell asleep quickly with his parents near him.
Output:
Teddy