This example displays a smiling face with animated eyebrows built entirely through D3.js v5 DOM manipulation. The SVG face consists of circles for the eyes and head, a path for the mouth, and rectangles for the eyebrows, all positioned relative to a centered group element. Using D3's selection API (`d3.select`, `d3.append`) and the `transition` method, the eyebrows animate vertically over two seconds, moving up and then returning to their original position. The drawing relies on hardcoded numeric coordinates rather than external data.