<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/160x213/54eb83cead991_-_picture-perfect-hanging-mdn.jpg>
<http://www.womansday.com/home/decorating/g178/hang-framed-pictures-the-right-way-100901/>