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<html xml:lang="en"
    xmlns="http://www.w3.org/1999/xhtml"
    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
    xmlns:geo="http://www.opengis.net/ont/geosparql#"
    xmlns:spacerel="http://data.ordnancesurvey.co.uk/ontology/spatialrelations/"
    xmlns:room="http://vocab.deri.ie/rooms#"
    xmlns:org="http://www.w3.org/ns/org#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:dct="http://purl.org/dc/terms/"
    xmlns:oo="http://purl.org/openorg/">
  <head>
    <title>Hello World!</title>
  </head>
  <body>
    <h1>Hello World!</h1>
  </body>
</html>