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

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

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

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

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

What relation is your grandmother's grandson's mother's daughter's daughter in law to you ?