This example shows a force-directed organization graph diagram with two main nodes connected by a link. Each main node has child nodes, which each branch out into 20 small leaf nodes without labels. Circles represent nodes sized by hierarchy level, while lines connect them, and text labels appear only on named parent and child nodes. The visualization uses D3 v6 with `d3.forceSimulation`, `forceManyBody`, `forceLink`, and `forceCenter` to compute the layout, rendered as SVG elements. Data is defined manually in a separate module with distances between connected nodes.