usedByPromotion

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: usedByPromotion

Indicates that something (such as a resource, item, or rule) is utilized or referenced as part of a specific promotion.