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

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

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

What relation is your cousin's mother's sister's brother in law to you ?

What relation is your brother's father's daughter's grandfather to you ?

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