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

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

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

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

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

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