This example demonstrates a force-directed graph representing the relationships between regex patterns and bibliographic text fragments. The visualization uses `d3.forceSimulation` to position nodes and links, with each node labeled by its regex fragment. The underlying data comes from a gist containing a single regex pattern and two bibliographic string snippets. The code employs D3’s selection and data-binding methods to render SVG circles and lines, while `d3.drag` enables interactive node movement. The rendering approach relies on standard D3 scales and axes to map regex components to visual coordinates, though no specific layout algorithm beyond the force simulation is applied.