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What relation is your brother's aunt's son's mother's daughter's grandfather to you ?

What relation is your brother's mother's husband's sister to you ?

What relation is your father's brother's daughter's mother's brother in law's son to you ?

What relation is your grandfather's wife's grandson's father to you ?

What relation is your brother's cousin's father in law's son to you ?

What relation is your brother's sister's cousin's father to you ?