This example shows a force-directed graph with three nodes and two links, rendered as circles in an SVG container. It uses React only to mount the visualization, while D3 handles the simulation and rendering logic. The code calls `forceSimulation`, `forceManyBody`, `forceLink`, and `forceCenter` to compute layout, and appends circles via `select` and `data`. A `tick` event logs to the console but does not update the circle positions, leaving the graph static.