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: Jason grew up riding motorcycles. Sentence2: He won his first motorcycle race at the age of 13. Sentence3: He kept racing and improving. Sentence4: Kawasaki sponsored him at the age of seventeen. Sentence5: Jason said that gave him to confidence to win the motocross.
Kawasaki, Jason

Sentence1: Dan had a very fine cobblestone walkway. Sentence2: Some of the stones had started to jut out unevenly. Sentence3: Dan got out a shovel and leveled the dirt under them. Sentence4: He tamped them down gently to make them all match. Sentence5: Now the stones in Dan's walkway are all perfectly even.
Dan

Sentence1: Tim tried to become smarter. Sentence2: He would study many great thinkers. Sentence3: He learned that the leaders advised creating things. Sentence4: He learned that creating more than consuming was important. Sentence5: Tim stopped consuming excessively and began creating more.
Tim