<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/640x72/54cab627de1a0_-_bat_house_banner_1010_de-67442763.jpg>
<http://www.popularmechanics.com/home/how-to-plans/how-to/a6262/offbeat-diy-projects/>