Oak is related to Furniture. Bench is a type of Furniture. Bench is a type of Company. 
Art is related to Color. Color is related to Pale. Pale is related to Blood. Blood is related to Donor. 
Oak <--RelatedTo--> Furniture <--IsA-- Bench --IsA--> Company 
Art <--RelatedTo--> Color <--RelatedTo--> Pale <--RelatedTo--> Blood <--RelatedTo--> Donor 