Five circles representing apples appear in a row, then transition through a sequence of updates: one fruit is removed, a middle apple changes into a lemon, and another circle exits, all with smooth one-second animations. The example uses D3 v5 with `scaleOrdinal` for color and radius mapping, plus `selection.enter`, `merge`, and `exit` with `transition` and `attr` to animate circle positions and sizes. Data is generated with `range` and `Math.random` IDs, rendered as SVG in a fixed 960×500 viewport.