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

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

What relation is your brother's father's sister's niece to you ?

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

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

What relation is your brother's grandmother's grandson's uncle to you ?