{"version":"1.0","type":"rich","title":"task2-1","description":"This visualization displays a pie chart of the Air Quality Index by country, using a categorical color scale to distinguish slices and an accompanying legend with country names and index values. Data is loaded from a CSV hosted on GitHub, with numeric conversion and sorting by index before rendering. The chart uses D3 v5 APIs including `pie()`, `arc()`, `scaleOrdinal` with `schemeCategory10`, and `select`/`append` to build the SVG output.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/36f445e6315e46fca81bb9fa8349b05d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}