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

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

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

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

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

What relation is your grandmother's grandson's sister's brother in law to you ?