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.

Input: Consider Input: Context: The boy was always sad. His family was always arguing. 
 Sentence: There was nothing he could do. 
 Character: Parents

Output: None


Input: Consider Input: Context: Sally wasn't feeling well. 
 Sentence: She had bronchitis and pneumonia. 
 Character: Sally

Output: None


Input: Consider Input: Context: None 
 Sentence: Lucy sat at the police station. 
 Character: Grandpa


Output: None