 x positions, but the same stroke value.
    -->
</svg>

<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
    <circle cx="50" cy="50" r="&amp;" />
    <circle cx="50" cy="50" r=" " />
    <circle cx="50" cy="50" r="`" />
    <circle cx="50" cy="50" r="=" />
    <circle cx="50" cy="50" r="<" />
    <circle cx="50" cy="50" r=">" />
    <circle cx="50" cy="50" r="&quot;" />
    <circle cx="50" cy="50" r="'" />
    <circle cx="50" cy="50" r="a" />
    <circle />
</svg>

<svg />

<svg>
    <unknown