This interactive network graph visualizes the connections among a team of six individuals, mapping their professional relationships and displaying each person's role in a tooltip on hover. Using D3.js v7, the simulation employs `d3.forceSimulation` with `d3.forceLink` for link constraints, `d3.forceManyBody` for charge-based repulsion, and `d3.forceCenter` for layout anchoring. Nodes are rendered as draggable SVG circles with labels, and the `.on('mousemove')` handler feeds data to a tooltip div. The code utilizes `d3.select` and the `.join()` operator for element creation.