This example shows a force-directed network of arts organizations using a hierarchical node structure, with main nodes, child nodes, and small leaf nodes connected by links. It uses d3.forceSimulation with forceManyBody, forceLink, and forceCenter to position the nodes. The SVG rendering updates circle sizes, text labels, and lines on each simulation tick. The data defines two main clusters—"Arts Web" and "Social Impact Commons"—with related organizations and their associated leaf nodes.