<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/980x653/54ff08e387b2c-ghk-scheduling-secrets-07-s2.jpg>
<http://www.goodhousekeeping.com/institute/g537/top-product-questions/>