This example visualizes the distribution of object types across continents using a nested dataset from a SPARQL endpoint. Animated SVG bars represent counts of cultural heritage objects, with each group color-coded by geographical origin. The code fetches JSON data via `d3.json`, processes it through a chain of `.then()` transformations, and uses `d3.nest()` to structure the data by continent. Rendering relies on D3 v5’s SVG selection and animation methods, with styling defined in a linked stylesheet.