code: protected SemanticSpace getSpace() {
          Transform transform = null;
          if (argOptions.hasOption('T'))
              transform = ReflectionUtil.getObjectInstance(
                      argOptions.getStringOption('T'));
          else
              transform = new NoTransform();
          int bound = argOptions.getIntOption('b', 10000);
          int windowSize = argOptions.getIntOption('w', 5);
          return new OccurrenceCounter(transform, bound, windowSize);
      }
docs: {@inheritDoc}