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What relation is your father's sister's nephew's grandfather to you ?

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

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

What relation is your brother's uncle's son's mother's nephew to you ?

What relation is your grandmother's grandson's sister's daughter in law to you ?

What relation is your sister's uncle's son's brother's grandfather to you ?