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: Bob bought a bag of potato chips from the store. Sentence2: It was a huge bag meant for a family. Sentence3: But Bob ripped open the bag and dove in. Sentence4: He didn't live that far from the store. Sentence5: Even still, he was finished by time he got home!
Example Output: Bob, The store

Example Input: Sentence1: Fred was going to make sure he didn't end up like his dad. Sentence2: His dad abused his mom and never provided for his family. Sentence3: Fred found a good job and got married. Sentence4: He supported his family and never abused them. Sentence5: Fred was proud of his own accomplishments.
Example Output: His mom, His dad, His family, Fred

Example Input: Sentence1: Sue's parents bought a new house. Sentence2: Sue got to pick her own bedroom. Sentence3: She chose a light blue color to paint the walls. Sentence4: They also hung new curtains. Sentence5: Sue felt like a princess when she finally slept in her new room.
Example Output:
Sue's parents, Sue