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

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

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

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

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

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