code: protected DependencyContextGenerator getContextGenerator() {
          if (argOptions.hasOption('H'))
              return new PartOfSpeechDependencyContextGenerator(
                      basis, windowSize());
          if (argOptions.hasOption('O'))
              return new OrderingDependencyContextGenerator(
                      basis, windowSize());
          return new OccurrenceDependencyContextGenerator(basis, windowSize());
      }
docs: {@inheritDoc}