This document is content-negotiated. If you request it with
Accept: application\/x-turtle<\/code> you will get the description in Turtle.  Also supported: application\/rdf+xml<\/code>, application\/json<\/code>, text\/plain<\/code><\/div><\/body>/'");

# Return NTriples (text/plain)
} else if ($text_plain) {
	header("Content-Type: text/plain");
	passthru("~/bin/rapper -q -i turtle -o ntriples ./$name.ttl");

# Return Turtle ontology by default
} else {
	header("Content-Type: application/x-turtle");
	passthru("cat ./$name.ttl");
}

function accepts($type) {
	global $_SERVER;
	if (preg_match("/$type(;q=(\d+\.\d+))?/i", $_SERVER['HTTP_ACCEPT'], $matches)) {
		return isset($matches[2]) ? $matches[2] : 1;
	} else {
		return 0;
	}
}

?>