[English grammar structure] Adverb [ER structure] 
Attribute for relationship
E n t i t y t y p e
E n t i t y
R e l a t i o n s h i p t y p e
A t t r i b u t e t y p e
A t t r i b u t e f o r e n t i t y
A t t r i b u t e f o r r e l a t i o n s h i p