This example shows a force-directed network of organizational nodes and links, with larger main nodes connected to smaller child and leaf nodes. The visualization uses d3.forceSimulation with forceManyBody, forceLink, and forceCenter to position elements, while SVG circles, text, and lines are updated on each tick. Node sizes, distances, and link strengths are defined in a separate data module, and hierarchical relationships are built programmatically through helper functions that add main, child, and leaf nodes. The rendering is entirely SVG-based, with gray circles and black links displayed on a hidden-overflow canvas.