mainSeatOf

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: mainSeatOf

Indicates that one entity serves as the primary or central seat (e.g., of government, administration, or authority) for another entity.