<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:ex="http://example.org/terms#">
<head> 
   <title>Test 0173</title> 
   <base href="http://example.org/"/> 
</head> 
<body xml:lang="en"> 
   <p property="ex:prop" xml:lang="">Just a plain literal.</p> 
</body>
</html>