Creative is related to Idea. Idea is related to Theme. Theme is a type of Tune. 
Unique is related to Average. Average is related to Sum. Contribution is a type of Sum. 
Creative <--RelatedTo--> Idea <--RelatedTo--> Theme --IsA--> Tune 
Unique <--RelatedTo--> Average <--RelatedTo--> Sum <--IsA-- Contribution 