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

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

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

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

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

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