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.

Example Input: Sentence1: Jrue dealt with leg injuries throughout his career. Sentence2: He was finally healthy entering last offseason. Sentence3: He did a lot of leg strengthening exercises. Sentence4: He had a minutes limitation at the start of this season. Sentence5: He now plays heavy minutes without any issues with his legs.
Example Output: Jrue

Example Input: Sentence1: Jacob noticed his dog was whining. Sentence2: Jacob investigated and found his dog's leg hurt. Sentence3: He took the dog to see the vet. Sentence4: The vet made a cast to set the hurt leg. Sentence5: Within a few weeks, Jacob and his dog were playing again!
Example Output: Jacob, Vet, Dog

Example Input: Sentence1: Jesse wanted to get her nails done. Sentence2: She decided to research nail shops online. Sentence3: She found many near her. Sentence4: She then read all the reviews. Sentence5: She got her nails done at the place with great reviews.
Example Output:
Jesse