<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/320x250/550047913f113-car-garge-house-lg.jpg>
<http://www.goodhousekeeping.com/home/g2120/indoor-air-quality-47020101/?src=shelter_footer>