This scatter plot displays the relationship between sepal length and petal length for Iris flowers, with species differentiated by symbol shapes and a corresponding legend. It loads CSV data via `fetch` and `csvParse`, then renders using D3 v7’s `scaleLinear`, `scaleOrdinal`, `symbolsFill`, and `symbol` generators. Axes and labels are drawn with `axisLeft`, `axisBottom`, and custom text elements, while the shape legend is built manually with `symbol` and tick groups.