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

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

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

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

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

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