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

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

What relation is your father's daughter's cousin's mother's nephew to you ?

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

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

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