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

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

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

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

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

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