physicalMediumDependentSubtype

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: physicalMediumDependentSubtype

Indicates that one subtype or variation of something is specifically determined or constrained by the physical medium through which it exists or operates.