This network graph visualizes a hierarchical data flow from "World" down to countries, crops, and production/consumption metrics. A force-directed layout positions colored nodes by category—red for the root, blue for countries, orange for crops, and green/purple for data endpoints. The implementation uses d3.forceSimulation, d3.forceLink, and d3.forceManyBody for the physics, with d3.drag enabling interactive node repositioning. All rendering happens in SVG, with tick updates repositioning lines, circles, and text labels.