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.
Input: Sentence1: Randy needed a drink after work. Sentence2: He opened the refrigerator to look for a drink. Sentence3: He got a coke but he noticed another drink behind it. Sentence4: There was a beer hidden in the refrigerator. Sentence5: He got the beer and got drunk off of it for the night.
Output:
Randy