opts.addOption('v', "verbose", "Turns on verbose output",
false, null, "Program Options");
opts.addOption('V', "verbVerbose", "Turns on very verbose output",
false, null, "Program Options");
opts.addOption('r', "randomGraphs", "The number of random graphs" +
" to use for the null model (default: 1000)",
true, "INT", "Algorithm Options");
opts.addOption('z', "motifSize", "The number of vertices in the" +
" identified motifs (default: 3)",
true, "INT", "Algorithm Options");