example.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'rdf/rdfa'

data = <<-EOF;
  <?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 xmlns="http://www.w3.org/1999/xhtml" version="XHTML+RDFa 1.0" 
     xmlns:dc="http://purl.org/dc/elements/1.1/">
  <head>
     <title>Test 0001</title>
  </head>
  <body>
     <p>This photo was taken by <span class="author" about="photo1.jpg" property="dc:creator">Mark Birbeck</span>.</p>
  </body>
  </html>
EOF

reader = RDF::RDFa::Reader.new(data, base_uri: 'http://rdfa.info/test-suite/test-cases/xhtml1/0001.xhtml')
reader.each_statement do |statement|
  statement.inspect!
end