{"version":"1.0","type":"rich","title":"practice1","description":"This example shows a yellow smiley face with animated eyebrows that move up and down repeatedly. Rendered in SVG, it uses D3.js v5 to build the face from primitive shapes: a circle for the head, circles for the eyes, rectangles for the eyebrows, and a path created with the `arc` generator for the mouth. The eyebrow animation relies on chained `transition().duration()` calls to toggle the group’s vertical position. The code explicitly selects the SVG element and sets attributes like `cx`, `r`, and `x` to define the layout.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/4961fdee46c845008e61c5438a792696?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}