This example demonstrates the general update pattern for data joins in D3, showing how to add, remove, and modify fruit shapes rendered as SVG circles and text labels in a bowl. The code uses `selection.enter()` and `selection.exit()` to handle new and removed data points, while merging entered and updated selections for styling. It relies on `d3.scaleOrdinal` for both color and radius scales, mapping apple and lemon types to distinct visual properties. The animation sequence, driven by `setTimeout`, initially renders five apples, then removes one, replaces another with a lemon, and filters out an additional apple.