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: Melinda heard a noise. Sentence2: There was a burglar in her house! Sentence3: She called the police. Sentence4: They rushed over and arrested him. Sentence5: Melinda no longer felt safe.
Example Output: Melinda, Burglar, Police

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: My husband refused to eat spaghetti. Sentence2: He told me he liked it but wouldn't eat it. Sentence3: I asked him why he wouldn't eat it. Sentence4: He said it was because his dad ate it twice per week. Sentence5: He liked it, he was just sick of it.
Example Output:
I (myself), Husband, His dad