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

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

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

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

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

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