This network graph shows the hierarchical relationship between mobile phone brands and their models, with a central “Mobiles” root node connecting to brand nodes (apple, samsung, oneplus, etc.), which in turn link to individual phone models. The visualization uses a force-directed layout powered by `d3.forceSimulation` with `forceLink`, `forceManyBody`, and `forceCenter` components to position nodes dynamically. Nodes are rendered as SVG circles with labels, and links as lines, with colors distinguishing the root node from brand/model nodes. The data consists of 28 phone records with brand and processor information, though the processor attribute is not visualized.