This example shows an organization graph diagram rendered in SVG, displaying a network of main organizations and their associated child nodes with leaf connections. The visualization uses D3’s force simulation (`d3.forceSimulation`, `d3.forceManyBody`, `d3.forceLink`, `d3.forceCenter`) to position nodes and links, with drag interaction enabling manual repositioning. Node sizes and colors are defined in the data files, distinguishing main nodes, children, and leaves. The code draws the network as circles, lines, and text labels within an SVG container, updating positions on each simulation tick.