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      <meta charset=utf-8>
      <title>Test 0091</title>
   </head>
   <body>
      <p about="[_:human]">
         A human is
         <span property=":definition">a bi-pedal primate</span>.
         They are quite possibly one of the most
         <span property=":note">confused animal</span>s residing in the 
		 <span property=":foo">Milky Way</span>.
      </p>
   </body>
</html>