This example visualizes a relationship network using a force-directed layout. It employs D3.js’s `d3.forceSimulation` and `d3.forceLink` to position interconnected nodes, with `d3.drag` enabling interactive node manipulation. The graph displays circular nodes and curved link paths, rendered via SVG. The visualization loads data from an external JSON source, mapping node IDs and link sources/targets to construct the topology. Styling applies an orange node fill and a distinct blue color for the highlighted link, while the simulation continuously updates positions through tick events.