This example displays a small social network of five people—John, Alice, Bob, Emily, and Michael—as a node-link diagram rendered in SVG. The graph shows connections between individuals as green links, with each person represented by a large light-green circle and a text label. The layout is computed using d3.forceSimulation with link, charge, collision, and centering forces, while d3.drag enables interactive repositioning of nodes. Hovering over a node triggers a class change to color it steelblue.