<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/12/5508c6aa2a225-woman-lifting-weights-yb5tl3-s3.jpg>
<http://www.goodhousekeeping.com/health/diet-nutrition/advice/a17479/ways-to-speed-up-metabolism/>