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What relation is your sister's grandmother's grandson's aunt's nephew to you ?

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

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

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

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

What relation is your mother's husband's daughter's aunt's brother to you ?