Black is related to Road. Highway is a type of Road. Highway is related to Rest. Rest is related to Regain. 
Department is related to Station. Station is a type of Position. Position is related to Edge. Edge is a synonym of Rim. 
Black <--RelatedTo--> Road <--IsA-- Highway <--RelatedTo--> Rest <--RelatedTo--> Regain 
Department <--RelatedTo--> Station --IsA--> Position <--RelatedTo--> Edge <--Synonym--> Rim 