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

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

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

What relation is your sister's grandmother's grandson's mother's niece's daughter in law to you ?

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

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