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: I sent my friend a thank you gift. Sentence2: A few weeks later, she posted a picture on facebook. Sentence3: It was a picture of a lasane in the pan I had sent her. Sentence4: It said Leah's Kickasserole on the side. Sentence5: She posted how much she loved the dish.
Example Output: I (myself), Leah, Friend

Example Input: Sentence1: Beth had a large collection of dolls in her bedroom. Sentence2: Beth had a favorite doll she called Kim. Sentence3: One day while Beth was at school her pet dog Skippy found Kim. Sentence4: Skippy chewed off one of Kim's arms. Sentence5: Beth was devastated after finding her chewed up doll.
Example Output: Skippy, Beth, Her doll kim

Example Input: Sentence1: The children held as still as they could under the porch. Sentence2: They heard the faint rustle of paws on the leaves. Sentence3: The children sensed the creature was close. Sentence4: With a shriek, they jumped out of the darkness at it. Sentence5: Triumphant, the children were certain the raccoon wouldn't return.
Example Output:
The raccoon, The children