This example displays the seven built-in D3 symbol types (circle, cross, diamond, square, star, triangle, and wye) rendered as stroked SVG paths along a horizontal scale. It uses `d3.symbol()` with a `d3.scaleLinear()` to position each shape, and applies each symbol generator via `d3[d]` lookups. Labels below each path show the corresponding API name. The data is a static array of symbol type strings, with the visualization rendered entirely in SVG.