code: protected void addExtraOptions(ArgOptions options) {
          options.addOption('s', "windowSize",
                            "The number of words to inspect to the left and " +
                            "right of a focus word (default: 5)",
                            true, "INT", "Algorithm Options");
          options.addOption('W', "useWordOrder", "Distinguish between relative "
                            + "positions of co-occurrences of the same word "
                            + "(default: false)", false,
                            null, "Algorithm Options");
      }
docs: {@inheritDoc}