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: Ronald wants to think of something to do with his friends. Sentence2: He decides that he would like to go bowling with them. Sentence3: They go to the local bowling alley in the afternoon. Sentence4: Ronald bowls very well. Sentence5: He is happy that he found something to do with his friends.
Example Output: Ronald, His friends

Example Input: Sentence1: I once had a green bicycle. Sentence2: I was a very nice bike. Sentence3: I couldn't let anyone ride it though, even if I'd liked. Sentence4: It made everyone sad that they couldn't ride my bike. Sentence5: Eventually i got a new bike so that people could ride it.
Example Output: I (myself), Anyone

Example Input: Sentence1: Miranda was trying to get better dental health habits. Sentence2: She was doing fine brushing and using mouthwash. Sentence3: But every time she tried to floss she felt great pain. Sentence4: She didn't want her hygiene to suffer so she tried floss picks. Sentence5: Luckily, the kid-friendly picks made flossing a lot easier.
Example Output:
Miranda