code: @Override
      public int stage3EquivalenceTerms(ProtoNetwork network) {
          TermEquivalencer e = new TermEquivalencer(network, equivs);
          int equivalences = e.equivalence();
          try {
              equivs.closeResources();
          } catch (IOException ie) {
              // Ignore it
          }
          return equivalences;
      }
docs: {@inheritDoc}