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.

[Q]: Context: Gina and her friends were cleaning up their picnic. Her sister spilled soda. 
 Sentence: She should have cleaned it up. 
 Character: Gina
[A]: None


[Q]: Context: Jake invited his friend to a party. 
 Sentence: The friend got too drunk. 
 Character: Jake
[A]: None


[Q]: Context: Katie was writing a story. 
 Sentence: Her grammar was terrible. 
 Character: Her teachers
[A]:
None