دور رئيسي

Given a predicate that represents a relationship or action between entities, generate a one-sentence description explaining its meaning.  
# Instructions
Focus on describing the relationship, not the entities themselves. 
# Response Format
Begin the description with \' Indicates...\'

Predicate: دور رئيسي

Indicates that an entity plays a primary or leading role in an action, event, or relationship compared to other involved entities.