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

What relation is your daughter's grandmother's son's sister's grandfather to you ?

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

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

What relation is your grandmother's husband's wife's grandson's brother's son to you ?

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