This example displays a single, large empty circle centered in an SVG canvas against a blank background. The visualization uses no data and only demonstrates the basic rendering of a vector shape through the SVG `circle` element. The page is minimal HTML with the SVG set to 960 by 500 pixels and the circle given a radius of 200, though no fill or stroke is specified. It serves as a preliminary test for placing geometric primitives in a browser without additional libraries.