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

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

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

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

What relation is your mother's father's wife's grandson's brother in law to you ?

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