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

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

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

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

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

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