Newspaper is a type of Product. Product is related to Condition. Condition is related to Clean. Clean is related to Decent. 
Commodity is a type of Artifact. Commodity is related to Oil. 
Newspaper --IsA--> Product <--RelatedTo--> Condition <--RelatedTo--> Clean <--RelatedTo--> Decent 
Artifact <--IsA-- Commodity <--RelatedTo--> Oil 