[Indicates] the subjective purpose or function of members of a set, e.g. a group of trees may occur naturally and have no purpose, they may have the same purpose, complementary purposes, or different purposes.[19] [Category] 
Affiliation
C o n f i g u r a t i o n
A f f i l i a t i o n
P e r s p e c t i v e
E x t e n s i o n
E s s e n c e
C o n t e x t
D e s i g n a t i o n