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

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

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

What relation is your daughter's sister's grandfather's son's nephew to you ?

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

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