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

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

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

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

What relation is your uncle's daughter's brother's mother's nephew's father in law to you ?

What relation is your brother's aunt's daughter's brother in law to you ?