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

What relation is your sister's father's mother's grandson's brother to you ?

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

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

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

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