Rural is a different concept from Urban. Suburban is derived from Urban. 
Human is the opposite of Bird. Bird is related to Term. Term is related to Animal. Animal is related to Dog. 
Rural <--DistinctFrom--> Urban <--DerivedFrom-- Suburban 
Human <--Antonym--> Bird <--RelatedTo--> Term <--RelatedTo--> Animal <--RelatedTo--> Dog 