This example visualizes a small social network graph with eight nodes and eleven directed links, showing friendship relationships between individuals. The graph uses a force-directed layout, with nodes rendered as blue circles and labeled with their IDs, while links appear as lines with arrow markers indicating direction. Hovering highlights a node with a green border. The visualization is built with d3.forceSimulation, d3.forceLink, d3.forceManyBody, d3.forceCollide, and d3.forceCenter, with data loaded from a JSON file and rendered as SVG elements.