<http://schema.org/image>
<http://static1.squarespace.com/static/5311f452e4b0d2c243131695/t/565186c3e4b08f0af88eee20/1476452228026/>
<http://www.iambnb.nl/blog/2016/1/7/5-must-have-items-voor-elke-airbnb-verhuurder>