Oil is related to Commodity. Export is a type of Commodity. Export is a type of Trade. 
Collar is related to Fashion. Jeans can be used for Fashion. Jeans can be used for Utility. Utility is a synonym of Use. 
Oil <--RelatedTo--> Commodity <--IsA-- Export --IsA--> Trade 
Collar <--RelatedTo--> Fashion <--UsedFor-- Jeans --UsedFor--> Utility <--Synonym--> Use 