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

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

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

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

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

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