This example displays a small social network graph showing friendship connections among ten people. The network uses a force-directed layout that positions nodes and links, with each person represented as a labeled circle and relationships as arrowed lines. The graph uses `d3.forceSimulation` with `d3.forceLink`, `d3.forceManyBody`, `d3.forceCollide`, and `d3.forceCenter` to compute the layout. Nodes are rendered as SVG circles with labels, and the simulation updates positions on each tick. The data comes from a JSON file with predefined nodes and links.