case 20: comm = new HydrogenFuel();break;
case 21: comm = new ExoticMatter();break;
case 22: comm = new BioWaste();break;
case 23: comm = new Slaves();break;
case 24: comm = new Drugs();break;
case 25: comm = new NutrientClods();break;
case 26: comm = new CyberneticX993Parts();break;
case 27: comm = new ExoticCrystal();break;
case 28: comm = new BlueSapphireJewels();break;
case 29: comm = new RubyJewels();break;
case 30: comm = new GoldenBerylJewels();break;