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What relation is your daughter's grandfather's son's son in law to you ?

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

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

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

What relation is your sister's brother's grandmother's grandson's mother's niece to you ?

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