This example displays two overlaid line charts, each plotting a distinct series from a tab-separated dataset against the same x-axis. The visualization uses D3 v5 to load data via `d3.tsv`, applies linear scales (`d3.scaleLinear`) to map x and y values, and renders the series as both green and steel-blue circles and connected paths using `d3.line`. The SVG output is transformed by a 25-pixel offset, while the dataset contains paired y-values across nine x-points.