def run_lubm_generator(num_universities, index, generator_seed, ontology, output_path, xms=XMS, xmx=XMX):
    run_tool("com.rdftools.LubmGenerator",
             xms, xmx,
             "--num_universities", num_universities,
             "--start_index", index,
             "--seed", generator_seed,
             "--ontology", ontology,
             "--output_path", output_path)