<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/54ff3aa067860-ghk-blog-hudson-river-1-12-12-200.jpg>
<http://www.goodhousekeeping.com/institute/a21568/beat-the-winter-blues-with-music/?src=shelter_footer>