<?xml version="1.0" encoding="utf-8"?>
<sparql xmlns="http://www.w3.org/2005/sparql-results#">
<head>
	<variable name="b1"/>
	<variable name="b2"/>
</head>
<results>
		<result>
			<binding name="b1"><bnode>b0</bnode></binding>
			<binding name="b2"><bnode>b1</bnode></binding>
		</result>
</results>
</sparql>

