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

What relation is your mother's sister's niece's father in law to you ?

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

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

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

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