<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/12/550910bedc68d-0812-rubin-happier-at-home-xl.jpg>
<http://www.goodhousekeeping.com/health/wellness/advice/a18307/happier-home-book-excerpt/>