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: Shelly wanted to make a music video for his new song. Sentence2: He got some friends together and hired a host of extras. Sentence3: They danced on cars that they parked in a city. Sentence4: The video was a moderate success. Sentence5: Shelly saw a slight bump in downloads of his song.

Output: Extras, Friends, Shelly

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: Linda was intrigued by music of all sorts. Sentence2: She particularly enjoyed guitar solos. Sentence3: Linda dreamed of being able to play the guitar. Sentence4: She bought a guitar at a local pawn shop. Sentence5: Linda can now play all of her favorite songs.
Output: Linda