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

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

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

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

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

What relation is your brother's mother's daughter's aunt to you ?