A yellow crying face, rendered as an SVG, shows a pair of eyes and a sad, arcing mouth. Its rectangular eyebrows continuously animate up and down over two seconds, using chained D3 transitions with the `transition().duration()` method. The face is built with D3's DOM `select` and `append` APIs, drawing circles, rectangles, and an `arc()` path for the mouth, all centered within a 960x500 viewport.