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

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

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

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

What relation is your wife's daughter's grandmother's husband to you ?

What relation is your mother's husband's wife's son's niece to you ?