<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/320x368/54ebab4741dc6_-_crossword-puzzle-xl.jpg>
<http://www.womansday.com/health-fitness/wellness/how-to/g1194/how-to-improve-your-memory/>