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What relation is your sister's aunt's nephew's mother's niece to you ?

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

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

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

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

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