<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/54ff8fede16cd-ghk-closed-window-plant-de.jpg>
<http://www.goodhousekeeping.com/home/a25785/cool-without-air-conditioning/?src=shelter_footer>