firstWorldBaseballClassicAppearance

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: firstWorldBaseballClassicAppearance

Indicates the event or year in which an entity (typically a national team or player) made its debut in the World Baseball Classic.