This example demonstrates the general update pattern in D3, showing how data joins handle adding, removing, and modifying elements. A bowl of five apples is rendered as SVG circles and text labels; one apple is eaten, another turns into a lemon, and a third is removed. The code uses `selection.selectAll`, `selection.enter`, `selection.merge`, and `selection.exit` to manage the transitions. It relies on `d3.scaleOrdinal` for color and radius mappings, and `d3.select` to target the SVG container.