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

What relation is your daughter's grandmother's husband's son's grandfather to you ?

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

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

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

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