This example shows a small organization network graph with three nodes (Alice, Bob, Carol) connected by two directed links, rendered as black circles and lines in an SVG. The graph uses D3’s `forceSimulation` with `forceManyBody`, `forceLink`, and `forceCenter` to position nodes dynamically, while React manages the page structure and D3 v5 handles the rendering. The visualization updates node and link coordinates on each simulation tick, illustrating a basic force-directed layout for hierarchical relationships.