This scatter plot shows the relationship between sepal length and petal length for three iris species, with each species represented by a distinct symbol and a corresponding legend. The visualization uses D3 version 7, leveraging `scaleLinear` for axes, `scaleOrdinal` with `symbolsFill` for shape encoding, and custom modules for axes and legend rendering. Data is loaded asynchronously from a CSV file containing iris measurements, which are parsed and converted to numeric values before plotting.