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

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

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

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

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

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