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.
Problem:Sentence1: Sean was living in Oregon. Sentence2: Marijuana had been legalized last year and today, shops opened. Sentence3: Sean was one of the first people to go. Sentence4: He went through the ID process and then went inside. Sentence5: It felt so good to buy legal marijuana.
Solution:
Sean, Marijuana