clanSystem

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: clanSystem

Indicates a social structure in which individuals are organized into kin-based groups (clans) that define relationships, obligations, and affiliations among them.