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.

Sentence1: David took his children to the state park to look at the wildlife. Sentence2: They drove around until they saw a group of brown bears mingling. Sentence3: David parked the car and they began to observe the bears. Sentence4: One small cub walked up to the car and opened the door. Sentence5: Surprised, Andy quickly closed the door.
Cub, Bears, Andy, Children, David

Sentence1: Last year Paul was about an inch too short for the big roller coaster. Sentence2: He was confident when he walked up to the measuring stick. Sentence3: Sure enough, he had grown well over an inch. Sentence4: He proudly got on the roller coaster. Sentence5: It was as much fun as he expected it to be!
Paul

Sentence1: Teddy breezed through high school with almost all As. Sentence2: He thought college would be easy. Sentence3: After this first biology test, he realized he was wrong. Sentence4: He had to study for hours every day just to get Cs. Sentence5: He realized he wasn't as smart as he thought he was.
Teddy