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

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

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

What relation is your aunt's son's uncle's cousin to you ?

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

What relation is your brother's uncle's daughter's aunt's granddaughter to you ?