pointSource

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: pointSource

Indicates that an entity acts as a localized origin or emitter of some quantity (such as light, sound, or radiation) concentrated at a single point in space.