<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/50/480x552/548a4db93859a_-_rbk-wall-art-0312-3-xln.jpg>
<http://www.redbookmag.com/home/decor/how-to/g1040/how-to-hang-art/>