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

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

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

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

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

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