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

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

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

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

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

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