This example shows an organization graph with two main child nodes branching from a central parent node, where one child expands into six anonymous members. A force-directed simulation arranges the nodes, with gray circles scaled by node size and labels displayed at each node's center. The visualization uses `d3.forceSimulation` with `forceManyBody`, `forceLink`, and `forceCenter` to compute positions, while SVG circles, lines, and text elements are updated on each simulation tick. The data is defined programmatically in `data.js`, creating a hierarchical structure of parent and child nodes.