This example shows a force-directed network of organizations, distinguishing three node types—main, sub, and anonymous—by size and color, as loaded from CSV edge and node attribute files. It uses React with D3’s `forceSimulation` (including `forceCenter`, `forceManyBody`, `forceCollide`, and `forceLink`) to compute layout positions, and renders nodes as SVG circles with labels, with edges colored to match their source main organization. The graph supports dragging nodes to reposition them within the simulation.