relatedCorrespondence

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: relatedCorrespondence

Indicates that there exists a piece of correspondence (such as a letter, email, or message) that is associated with or pertains to the related entity.