This example visualizes the character co-occurrence network from Les Misérables as an interactive force-directed graph. Nodes represent characters, colored randomly by group affiliation, with labels and links showing relationships. The visualization uses d3.forceSimulation with forceLink, forceManyBody, and forceCenter to compute layout, while d3.drag and d3.zoom enable user interaction. Data loads from a remote JSON file containing the miserables dataset.