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: Tammy is a lawyer. Sentence2: She enjoys helping people and earning money. Sentence3: A poor client asks her to take her case. Sentence4: She says no. Sentence5: Tammy felt bad for her and helped her anyway.

Ex Output:
Poor client, Tammy

Ex Input:
Sentence1: Sue entered a nacho eating contest. Sentence2: Nachos are her favorite food so she thought she could do well. Sentence3: Sue started off slow to pace herself. Sentence4: She then upped the ante. Sentence5: Sue ate 15 pounds of nachos but did not win.

Ex Output:
Sue

Ex Input:
Sentence1: My friend asked me to run a marathon with him. Sentence2: We signed up on the local website. Sentence3: We spent the next two months training vigorously. Sentence4: Finally, marathon day was upon us. Sentence5: My friend and I finished in 100th & 101st places out of 3,000 people!

Ex Output:
I (myself), Friend