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: Consider Input: Sentence1: Brent was an engineer. Sentence2: Brent had a hobby of making soap. Sentence3: He decided to sell his soap for money. Sentence4: He was wildly successful and went into the soap business. Sentence5: Brent had a great career in the soap business.

Output: Brent


Input: Consider Input: Sentence1: James found a robber in his house. Sentence2: He decided to get a gun for protection. Sentence3: He didn't know anything about guns, but he didn't care. Sentence4: That night, he heard a noise. Sentence5: He shot into the darkness and ended up hitting his cat.

Output: James, Robber, Cat


Input: Consider Input: Sentence1: Natalie had auditioned for the lead in the school play. Sentence2: She won the part and was super excited. Sentence3: She rehearsed for weeks and weeks. Sentence4: On opening night, she acted her little heart out. Sentence5: The play was a huge success!

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Output: Natalie


