<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/320x408/55004aff92169-senior-couple-walking-lg.jpg>
<http://www.goodhousekeeping.com/health/diet-nutrition/g2182/beta-carotene-47011204/>