@Override
        public Traversal<Vertex, String> get_g_V_hasLabelXpersonX_V_hasLabelXsoftwareX_name() {
            return g.V().hasLabel("person").V().hasLabel("software").values("name");
        }
@author Marko A. Rodriguez (http://markorodriguez.com)
@author Stephen Mallette (http://stephen.genoprime.com)
@author Daniel Kuppitz (http://gremlin.guru)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/map/VertexTest.java