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

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

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

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

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

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