code: public boolean isInEquivalentState(physicalEntityParticipant pep)
  	{
          if( pep instanceof sequenceParticipant )
          {
  
              final sequenceParticipant that = (sequenceParticipant) pep;
  		    return
  			    super.isInEquivalentState(that) &&
  				    hasEquivalentFeatures(that);
          }
          else
          {
              return
  			    super.isInEquivalentState(pep);
          }
              
      }
docs: -------------------------- OTHER METHODS --------------------------