<?xml version="1.0"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN"
    "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
<svg width="500" height="500">
<path d="M 30 350 C 100 25 450 450 450 150 S 50 50 250 250" style="stroke: red; stroke-width: 4; fill: none;"/>
</svg>