<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/480x400/55003d9eabeae-ghk-tai-chi-class-s3.jpg>
<http://www.goodhousekeeping.com/health/fitness/g1843/low-intensity-exercises/?src=shelter_footer>