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: The family arrives at the beach. Sentence2: Everyone puts on sunscreen. Sentence3: The son plays in the clear water. Sentence4: The daughter builds sand castles. Sentence5: The parents relax for the rest of the day.

Output: The parents, The daughter, The family, The son

Input: Consider Input: Sentence1: James had two best friends who hated each other. Sentence2: He could never see them together but always apart. Sentence3: For his birthday, he made an exemption and invited them both. Sentence4: It was a gamble, but it worked. Sentence5: The two friends went over their disagreement for the sake of James.

Output: James, Best friends

Input: Consider Input: Sentence1: Today I took my jeep on a new trail. Sentence2: The trail we very muddy and difficult. Sentence3: I got my jeep stuck. Sentence4: Luckily my friend was there to pull me out. Sentence5: I decided to never go off-roading without a friend.
Output: I (myself), Friend