This parallel coordinate plot visualizes the Iris dataset, showing four measurements (sepal length, sepal width, petal length, petal width) as parallel axes connected by colored lines for each flower sample. The lines are colored by species—setosa, versicolor, and virginica—with a legend and title. Built with D3 v5, it uses `d3.scalePoint`, `d3.scaleLinear`, and `d3.axisLeft` to construct the axes and renders the polylines as SVG paths with adjustable opacity and stroke width.