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

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

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

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

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

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