This social network graph visualizes a small set of named individuals organized into four groups, with links between them representing connections of varying weight. The nodes are rendered as circles with lightgreen fills and labels, while links appear as black lines whose stroke width scales with the square root of each link’s weight. The layout is driven by d3.layout.force, which applies gravity, distance constraints, and charge to position nodes, and users can drag nodes interactively. The SVG is generated dynamically from the graph.json data file using d3.v4 and d3.v2 APIs.