Q: 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.
Context: Bill and Amy dated for four years. They finally decided to get engaged. Bill's father disapproved of the impending marriage. This put a strain on Bill's relationship with his father. 
 Sentence: After the wedding things were never the same between Bill and his dad. 
 Character: Bill
A:
None