This example uses D3.js to construct a cartoon face from basic SVG shapes—circles for eyes, rectangles for eyebrows, and a path for the mouth. The face is centered within a 960x500 SVG canvas, and the code animates the eyebrows by chaining `transition()` calls over two seconds to move them up and down. It imports `select` and `arc` from D3, using the `arc` API to generate the mouth's inner and outer radius path. The result is a simple, playful demonstration of D3’s shape creation and animation capabilities.