Teacher:In this task, you're given a context, a sentence,  and a character. The sentence describes an action or job of the given character. Also, the context provides more information about the sentence or the character. Your task is to write the character's motivation by doing a specific job, which is given in the sentence. You can use context to find the motivation; however, all the inputs do not provide context. Also, in some inputs, there can be zero motivation; output, 'None' in this case.
Teacher: Now, understand the problem? Solve this instance: Context: Sunny brought his son to a Yankees game. The boy wanted to watch his favorite player Mark Teixeira. Inning after inning, the Yankees were down more and more. Suddenly, the boy felt a spark of excitement and elation. 
 Sentence: Teixeira was leading the Yankees to victory! 
 Character: Yankees
Student:
None