This graph visualizes a small social network where nodes represent people and links show friendship relationships. Built with D3.js and React, it uses `d3.forceSimulation` with link, charge, collision, and center forces to position nodes dynamically. The SVG rendering includes cyan circles with green arrow markers on links, and supports drag interactions plus hover highlighting via the `nodeHover` CSS class. Data comes from an external `data.json` file containing node groups and link relationship attributes.