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: Shay was playing hide and seek with his brother. Sentence2: He hid behind the kitchen stove. Sentence3: His brother looked for him everywhere. Sentence4: But eventually he had to give up. Sentence5: Shay had won the game!
Output:
Shay, Brother