<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/480x552/54ff5202ace78-06-marriage-in-60s-couple-holding-hands-xln.jpg>
<http://www.goodhousekeeping.com/life/relationships/advice/g1128/how-marriage-evolves/>