class
type: Concept
preferred label: رده @fa
related: elementary chain

set
type: Concept
preferred label: مجموعه @fa
related: elementary chain

elementary chain
type: Concept
broader: chain of models
preferred label: زنجیر مقدماتی @fa
related: class
related: set

chain of models
type: Concept
narrower: elementary chain
preferred label: زنجیر مدل‌ها @fa