<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.0//EN" "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd"> <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>