<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/12/550914b5ed5d3-1112-molly-foley-xl.jpg>
<http://www.goodhousekeeping.com/health/a19497/stem-cell-research-treating-diseases/?src=shelter_footer>