code: protected boolean semanticallyEquivalent(BioPAXElement element)
  	{
  		if (!(element instanceof sequenceInterval))
  		{
  			return false;
  		}
  
  		final sequenceInterval that = (sequenceInterval) element;
  		return
  			(SEQUENCE_INTERVAL_BEGIN != null ?
  				SEQUENCE_INTERVAL_BEGIN.isEquivalent(
  					that.getSEQUENCE_INTERVAL_BEGIN()) :
  				that.getSEQUENCE_INTERVAL_BEGIN() == null)
  				&&
  				(SEQUENCE_INTERVAL_END != null ?
  					SEQUENCE_INTERVAL_END.isEquivalent(
  						that.getSEQUENCE_INTERVAL_END()) :
  					that.getSEQUENCE_INTERVAL_END() != null);
  	}
docs: --------------------- Interface BioPAXElement ---------------------