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.

[EX Q]: Sentence1: Paul had a problem with drugs. Sentence2: His Father was very concerned for him. Sentence3: He put him in a rehab center to get help. Sentence4: Paul stayed there for sixty days. Sentence5: He learned how bad drugs really were and never did them again.
[EX A]: Paul, Father

[EX Q]: 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.
[EX A]: His mom, His dad, His family, Fred

[EX Q]: Sentence1: Lilly woke up Saturday morning very excited. Sentence2: She was going on a long car ride with her father. Sentence3: She quickly finished her breakfast and dressed herself. Sentence4: She wore her favorite dress and best shoes. Sentence5: Her father carried her to the car and the car ride began.
[EX A]:
Lilly, Father