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: Rakesh was 10-years-old and his parents owned a motel. Sentence2: They believed their son Rakesh should have money to buy things. Sentence3: Rakesh bought toys from the hobby store, but his friend didn't. Sentence4: Rakesh gave his friend, Charles, $75! Sentence5: But Charles showed his mother the cash and she made him return it.
Example Output: His parents, Motel, Rakesh, His mother

Example Input: Sentence1: Today we had breakfast at 10:30. Sentence2: My wife went to DD to buy coffee and croissants. Sentence3: We had oatmeal and blueberries as well. Sentence4: We have a coffeemaker but prefer DD coffee. Sentence5: It was a nice breakfast.
Example Output: I (myself), Wife

Example Input: Sentence1: Irene went to the amusement park with her sisters. Sentence2: The girls had a great time all day. Sentence3: But when they got home, Irene saw that she was badly sunburned! Sentence4: She applied aloe ointment, which helped soothe her skin. Sentence5: But she was still very sore for several days afterwards.
Example Output:
Sisters, Irene