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What relation is your brother's cousin's mother's niece's son to you ?

What relation is your aunt's nephew's sister's mother to you ?

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

What relation is your grandmother's grandson's father in law's son's grandfather to you ?

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

What relation is your wife's son's uncle's father in law to you ?