Option overwriteOutput = obuilder.withLongName("overwrite").withRequired(false).withDescription(
"If set, overwrite the output directory").withShortName("ow").create();
Option helpOpt = obuilder.withLongName("help").withDescription("Print out help").withShortName("h")
.create();
Group group = gbuilder.withName("Options").withOption(minSupportOpt).withOption(analyzerNameOpt)
.withOption(chunkSizeOpt).withOption(outputDirOpt).withOption(inputDirOpt).withOption(minDFOpt)
.withOption(maxDFSigmaOpt).withOption(maxDFPercentOpt).withOption(weightOpt).withOption(powerOpt).withOption(minLLROpt)
.withOption(numReduceTasksOpt).withOption(maxNGramSizeOpt).withOption(overwriteOutput)
.withOption(helpOpt).withOption(sequentialAccessVectorOpt).withOption(namedVectorOpt)
.withOption(logNormalizeOpt)