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

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

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

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

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

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