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: Roger is a secret agent. Sentence2: His watch has a grappling hook. Sentence3: He uses the watch to climb up a building. Sentence4: He steals important documents from a high profile target. Sentence5: Roger receives a promotion for his work.

Output: Roger, Target

Input: Consider Input: Sentence1: Annie had a test on Monday. Sentence2: She went bowling on Friday. Sentence3: She went to the mall on Saturday. Sentence4: She watched TV on Sunday. Sentence5: Annie failed her test.

Output: Annie

Input: Consider Input: Sentence1: Kim had recently been divorced from her husband. Sentence2: She felt like she needed a new big change in life. Sentence3: She asked her hair stylist friend to give her a new do. Sentence4: After several minutes of cutting, her friend revealed the look. Sentence5: Kim was thrilled with her new A-line bob.
Output: Kim's hair stylist friend, Kim, Kim's husband