code: public static Object[] extractAllParseFeatures(Configuration configuration, int length)
      {
          if (length == 26)
              return extractBasicFeatures(configuration, length);
          else if (length == 72)
              return extractExtendedFeatures(configuration, length);
          else
              return extractExtendedFeaturesWithBrownClusters(configuration, length);
      }
docs: Given a list of templates, extracts all features for the given state
  
  @param configuration
  @return
  @throws Exception