This example shows a small social network of ten people connected by friendship links, with each person displayed as a labeled circle. Nodes and links are rendered as SVG elements and positioned using d3.forceSimulation, which applies link, charge, collision, and center forces to create a stable layout. The data is loaded from data.json, and each link includes a relationship label and a value. The visualization supports dragging nodes to explore the network and highlights nodes on hover. The code uses d3.forceLink, d3.forceManyBody, d3.forceCollide, and d3.forceCenter.