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

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

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

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

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

What relation is your daughter's grandfather's sister's nephew's father in law to you ?