{"version":"1.0","type":"rich","title":"task9b","description":"This example renders a single-series area chart from a CSV dataset, showing petal length values across an index. It uses D3 v6 to construct an SVG visualization, with a linear x-scale for the index and a linear y-scale for petal length. The area path is built with `d3.area`, filled in light blue, and the chart includes labeled x and y axes. Data is fetched from a GitHub Gist via `d3.csv`, and the layout is defined by fixed margins and dimensions.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/e50fa7a2ded74136a9537b9a60f246cb?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}