<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/160x213/54eb8d910e25d_-_cruise-west-cinlig-1_slideshow_image.jpg>
<http://www.womansday.com/life/travel-tips/tips/g473/10-family-friendly-cruises-2098/>