Option modelOpt = obuilder.withLongName("model").withRequired(true).withArgument(
abuilder.withName("index").withMinimum(1).withMaximum(1).create()).withDescription(
"The directory containing the index model").withShortName("m").create();
Option categoryFieldOpt = obuilder.withLongName("categoryField").withRequired(true).withArgument(
abuilder.withName("index").withMinimum(1).withMaximum(1).create()).withDescription(
"Name of the field containing category information").withShortName("catf").create();
Option contentFieldOpt = obuilder.withLongName("contentField").withRequired(true).withArgument(
abuilder.withName("index").withMinimum(1).withMaximum(1).create()).withDescription(
"Name of the field containing content information").withShortName("contf").create();