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.

Ex Input:
Sentence1: In college, I studied abroad in France. Sentence2: My 16-year-old host brother was very nice. Sentence3: I invited him to a party with me to meet some cool older kids. Sentence4: He misunderstood why I invited him. Sentence5: He tried to kiss me on the bus ride home.

Ex Output:
I (myself), Host brother, Older kids

Ex Input:
Sentence1: My husband has decided he wants to be a stay at home dad. Sentence2: We don't have any kids. Sentence3: All we have is two cats. Sentence4: He plays with them all day and calls them Laurel and Hardy. Sentence5: I can't believe I married this man.

Ex Output:
Dad, My husband, I (myself)

Ex Input:
Sentence1: Tom wanted to surprise his little girl, Jenny. Sentence2: Tom got a big box and put a puppy in it. Sentence3: Tom put the box next to Jenny's bed. Sentence4: When Jenny woke up, she opened the box. Sentence5: Jenny squealed with delight to find her new puppy!

Ex Output:
Puppy, Jenny, Tom