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: This Sunday, my wife and I went Christmas shopping. Sentence2: We went to a bookstore near my alma mater, Boston University. Sentence3: My wife bought a college sweatshirt. Sentence4: I bought a nice mug. Sentence5: We went home in the afternoon, pleased with our purchases.
Output:
I (myself), My wife