XHTML
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.0//EN" "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:foaf="http://xmlns.com/foaf/0.1/">
<head>
<title>Test 0009</title>
<link about="http://example.org/people#Person1"
rev="foaf:knows" href="http://example.org/people#Person2" />
</head>
<body>
<p></p>
</body>
</html>
Triples (N3 format)
@prefix _5: <http://example.org/people#>.
@prefix foaf: <http://xmlns.com/foaf/0.1/>.
_5:Person2 foaf:knows _5:Person1.
SPARQL (PASSED)
ASK WHERE {
<http://example.org/people#Person2> <http://xmlns.com/foaf/0.1/knows> <http://example.org/people#Person1> .
}