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: Carl was passionate about computers. Sentence2: He took many classes about computer programming. Sentence3: He decided to build a computer himself. Sentence4: He spent many hours researching and planning the computer. Sentence5: He successfully built the computer and saved a lot of money doing so.
Carl

Sentence1: It was Jordan's birthday. Sentence2: His mother was buying him a cake. Sentence3: Jordan's mother bought a strawberry cake. Sentence4: He had wanted a chocolate cake. Sentence5: Jordan had a tantrum about the cake.
Jordan, Jordan's mother

Sentence1: Dean's teacher began grading him on behavior weekly. Sentence2: Dean promptly dropped the behavioral grading slips in the garbage. Sentence3: Dean's parents never saw them. Sentence4: Dean's parents were asked about them at a parent-teacher conference. Sentence5: When Dean's parents got home, they were livid with Dean.
Dean's parents, Dean, Dean's teacher