This example visualizes the Iris dataset as a scatterplot, mapping sepal length on the x-axis and sepal width on the y-axis. Each circle represents a sample, colored uniformly in teal, with a title tooltip showing the x-value. The visualization is built using React and D3 v7, with scales from `d3.scaleLinear` and axes rendered as SVG components. Data is loaded asynchronously via `d3.csv` from a remote gist, and the layout uses fixed margins and SVG groups for positioning.