Economics is derived from Economic. Economic is related to Trade. Trade is related to Business. Business is related to Production. 
Glass is a type of Insert. Insert is a type of Put. Bucket is a type of Put. 
Economics --DerivedFrom--> Economic <--RelatedTo--> Trade <--RelatedTo--> Business <--RelatedTo--> Production 
Glass --IsA--> Insert --IsA--> Put <--IsA-- Bucket 