This example demonstrates basic SVG shape construction within an HTML document, using elements like circles, rectangles, lines, and paths to form a simple composition. The SVG canvas is set to a width of 700 pixels, and shapes are positioned with explicit coordinates and styled with fill colors or strokes. The code includes an incomplete circle with a stroke but no fill, a line with empty coordinates, and a path that outlines a square, showcasing how SVG handles both finished and incomplete markup. No JavaScript libraries are used; the visualization relies purely on the built-in SVG API defined in the HTML.