This example demonstrates a force-directed network graph rendered with SVG, where nodes represent entities, attributes, and relations from a JSON graph dataset. Users can zoom and pan the visualization, and right-clicking a node opens a custom context menu with actions. The implementation uses d3.forceSimulation with forceLink, forceManyBody, and forceCenter for layout, while nodes are styled as colored rectangles or small shapes based on their type. A React starter framework and d3.v4 APIs handle dynamic sizing and positioning of shapes and text labels.