This example visualizes a small organisational network using a force-directed graph. It shows three nodes representing individuals (Alice, Bob, Carol) connected by two directed links, illustrating a simple hierarchical chain. The visualization is built with D3 v7, using `d3.forceSimulation` to position the nodes and `d3` module imports for the simulation. The code defines the node and link data as JavaScript arrays, with links specified by zero-based indices referencing the node array. The simulation runs without explicit rendering logic; the example primarily demonstrates the data structure and force layout setup rather than complete visual output.