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What relation is your father's brother's daughter's sister to you ?

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

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

What relation is your cousin's aunt's niece's sister's father's daughter to you ?

What relation is your sister's grandmother's grandson's wife to you ?

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