var g = new AdjacencyGraph<StorageVertex, Edge<StorageVertex>>();

            var adlSite = new SiteVertex("Adelaide Clinic");
            g.AddVertex(adlSite);

            var modSite = new SiteVertex("Modbury Clinic");
            g.AddVertex(modSite);


            var elecService = new ServiceVertex("Electrical");
            var mechService = new ServiceVertex("Mechanical");

            g.AddVertex(elecService);
            g.AddVertex(mechService);


            //Put elec and mech services underneath adelaide

            g.AddEdge(new Edge<StorageVertex>(adlSite,elecService);
            g.AddEdge(new Edge<StorageVertex>(adlSite,mechService));



            var concreteAsset = new AssetVertex("Airconditioner model 1234");