<?xml version='1.0' ?>
<fabmetheus>
	<path id='semicircles'>
		<circle end='270' radius='10' start='90' translate.x='-20'/>
		<circle end='450' radius='10' start='270' translate.x='20'/>
	</path>
	<concatenate id='racetrack' target='=document.getElementByID(semicircles)'/>
	<extrude target='=document.getElementByID(racetrack)'/>
	<!--
	-->
</fabmetheus>
