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

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

What relation is your son's sister's grandmother's daughter's brother's niece to you ?

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

What relation is your sister's grandmother's grandson's aunt to you ?

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