This visualization combines a force-directed network graph with a collapsible adjacency matrix. The SVG renders 410 nodes and their connections from a TSV file, with nodes colored by group and links shown as lines. Users can drag nodes via d3.drag to rearrange the simulation, which uses d3.forceSimulation with link and charge forces. The matrix view, built with d3.scaleBand and scaleLinear, displays node co-occurrences, and a dropdown allows switching between name- and group-based ordering.