<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://hbz.h-cdn.co/assets/cm/15/11/320x408/550221ad8ec62_-_ipad-cases-0910-05-de.jpg>
<http://www.harpersbazaar.com/fashion/trends/g1231/stylish-ipad-cases-0910/>