This example shows a social network graph where nodes represent people and links represent shared attributes such as occupation. The code uses D3.js v6 with a force-directed layout via `d3.forceSimulation`, applying `d3.forceLink`, `d3.forceManyBody`, and `d3.forceCenter` to position the nodes. Each node is rendered as a blue circle with an SVG text label, and links are drawn as lines with a fixed stroke width. The simulation updates node and link positions on each tick, translating node groups accordingly. The data structure is defined inline with sample placeholders for nodes and links.