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

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

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

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

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

What relation is your uncle's son's aunt's brother in law to you ?