<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/480x552/550048a8a4355-tanita-innerscan-bc-533-bathroom-scale-xl.jpg>
<http://www.goodhousekeeping.com/health-products/bathroom-scale-reviews/g2108/best-bathroom-scales-2009/>