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

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

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

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

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

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