Detailed Instructions: 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.
Problem:Sentence1: Sunny brought his son to a Yankees game. Sentence2: The boy wanted to watch his favorite player Mark Teixeira. Sentence3: Inning after inning, the Yankees were down more and more. Sentence4: Suddenly, the boy felt a spark of excitement and elation. Sentence5: Teixeira was leading the Yankees to victory!
Solution:
His son, Sunny, Mark teixeira, Yankees