Composition is related to Page. Margin is part of Page. Margin is related to Book. Book is related to Face. 
Seminar is a type of Course. Course is related to Ability. 
Composition <--RelatedTo--> Page <--PartOf-- Margin <--RelatedTo--> Book <--RelatedTo--> Face 
Seminar --IsA--> Course <--RelatedTo--> Ability 