This example visualizes a social network as an interactive node-link diagram, showing friendships between ten people with each person represented as a labeled circle. The layout is computed using d3.forceSimulation with forceLink, forceManyBody, forceCollide, and forceCenter, rendering as SVG. Data comes from a local JSON file. Links are drawn as blue lines with arrowheads, nodes are draggable via d3.drag, and hovering highlights nodes with a thicker stroke.