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: I had a final exam. Sentence2: I decided to not go. Sentence3: My grade was high enough that I could skip the exam. Sentence4: Alas, I didn't read the syllabus correct. Sentence5: I failed the class because the final was worth more than I thought.

Output: I (myself)

Input: Consider Input: Sentence1: Jimmy had recently gotten a new telescope from his school. Sentence2: Tonight he planned on using it. Sentence3: He went to his backyard and set up his telescope to face the night sky Sentence4: He focused on a bright spot in the sky. Sentence5: He was so excited to see the planet Venus through his telescope!

Output: Jimmy

Input: Consider Input: Sentence1: Georgia was on a business trip to New Jersey. Sentence2: She was taking a training course and spent time networking. Sentence3: She met a few colleagues who invited her to drive into New York. Sentence4: That night, they all drove into the city and ate dinner. Sentence5: After the trip, Georgia continued to stay friends with the group.
Output: Colleagues, Georgia, Group