t>
        
        __D3JS__;

        var graph = __GRAPH__;

        var force = d3.layout.force()
                .nodes(d3.values(graph.nodes))
                .links(graph.links)
                .size([1000, 600])
                .linkDistance(60)
                .charge(-300)
                .on("tick", tick)
                .start();

        var svg = d3.select("svg");

        // Per-type markers, as they don't inherit styles.
        svg.append("defs")
                .append("marker")
           