A force-directed network graph visualizes nine people grouped into five communities, with weighted links connecting them. The graph uses a circular node layout with blue circles, red text labels, and black lines whose thickness corresponds to link weight. Built with d3.v4 and d3.layout.force, it loads node and link data from a JSON file, applies gravity, distance, and charge parameters, and enables dragging of nodes. The SVG rendering updates positions on each tick via the force event.