abuilder.withName("input").withMinimum(1).withMaximum(1).create()).withDescription(
"The input directory, containing properly formatted files: "
+ "One doc per line, first entry on the line is the label, rest is the evidence")
.withShortName("i").create();
Option outputOpt = obuilder.withLongName("output").withRequired(true).withArgument(
abuilder.withName("output").withMinimum(1).withMaximum(1).create()).withDescription(
"The output directory").withShortName("o").create();
Group group = gbuilder.withName("Options").withOption(helpOpt).withOption(