A yellow smiley face rendered in SVG uses D3.js v5 to demonstrate chained transitions on the eyebrows. The face, built with `d3.select` and `d3.arc` for the mouth, animates both rectangular eyebrows upward over two seconds, then returns them to their original position. The eyebrows move as a group via `transition.attr` on the transform attribute, while static circles and rectangles define the eyes and brows. This example shows basic DOM manipulation and timed animation without external data.