This visualization demonstrates a dynamic force-directed network layout, mapping relationships between nodes using `d3.forceSimulation` with charge, link, and center forces. It renders the network as SVG elements, with node positions updated via `d3.drag` behavior for interactive repositioning. The code also computes node-link coordinates on each tick, though the visual output focuses solely on the structural topology rather than spatial context. The underlying data structure is explicitly defined in the source, with nodes and links passed directly into the simulation, making the graph’s configuration fully transparent. The implementation relies entirely on D3 v3 APIs and a simple SVG renderer.