code: private static void addEquivalentsComplexes(PhysicalEntity pe, Set<PhysicalEntity> pes)
  	{
  		addEquivalentsComplexes(pe, true, pes);
  
  		// Do not traverse to more specific. This was causing a bug so I commented out. Did not delete it just in case
  		// later we realize that this is needed for another use case.
  //		addEquivalentsComplexes(pe, false, pes);
  	}
docs: Adds equivalents and parent complexes of the given PhysicalEntity to the parameter set.
  @param pe The PhysicalEntity to add its equivalents and complexes
  @param pes Set to collect equivalents and complexes