<!DOCTYPE html>
<html>
<head>
  <base href="http://example.com/"/>
  <meta charset=utf-8>
  <title>Test 0319</title>
</head>
<body prefix="pr: relative/iri#" xmlns:xpr="relative/uri#">
  <p property="pr:prop xpr:prop">value</p>
</body>
</html>