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

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

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

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

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

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