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

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

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

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