Boss wants (to) Work. Clerk is a type of Work. Clerk is a type of Human. Arab is a type of Human. 
Person wants (to) Sexy. Person wants (to) Garlic. Garlic is related to Ground. Ground is related to Terrain. 
Boss --Desires--> Work <--IsA-- Clerk --IsA--> Human <--IsA-- Arab 
Sexy <--Desires-- Person --Desires--> Garlic <--RelatedTo--> Ground <--RelatedTo--> Terrain 