Tune is a type of Adjust. Tune is related to Key. Key is related to Turn. Turn is related to Part. 
Contributor is a type of Writer. Writer is derived from Write. Write is related to Pen. Pen is the Book. 
Adjust <--IsA-- Tune <--RelatedTo--> Key <--RelatedTo--> Turn <--RelatedTo--> Part 
Contributor --IsA--> Writer --DerivedFrom--> Write <--RelatedTo--> Pen --DefinedAs--> Book 