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

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

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

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

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

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