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

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

What relation is your sister's aunt's daughter's uncle to you ?

What relation is your brother's grandmother's grandson's father in law to you ?

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

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