case 12: comm = new DroidModules();break;
case 13: comm = new RadioactiveCells();break;
case 14: comm = new Medicines();break;
case 15: comm = new NebulaGas();break;
case 16: comm = new ChemicalSupplies();break;
case 17: comm = new GemStones();break;
case 18: comm = new OpticalComponents();break;
case 19: comm = new Liquor();break;
case 20: comm = new HydrogenFuel();break;
case 21: comm = new ExoticMatter();break;
case 22: comm = new BioWaste();break;