Northwest is a type of Direction. Direction is related to Purpose. 
Story is a synonym of Report. Report is a synonym of Composition. Composition is derived from Compose. Compose is a type of Constitute. 
Northwest --IsA--> Direction <--RelatedTo--> Purpose 
Story <--Synonym--> Report <--Synonym--> Composition --DerivedFrom--> Compose --IsA--> Constitute 