This example displays a social network graph of eight people connected by friendship links. Nodes are rendered as blue circles with white labels, while directed edges with arrowheads indicate the relationship direction and thickness reflects connection strength. The visualization uses D3 v6’s `forceSimulation`, `forceLink`, `forceManyBody`, `forceCollide`, and `forceCenter` to position nodes, with drag interaction via `d3.drag`. Data comes from a local `data.json` file, and the SVG output updates on each simulation tick.