<https://craft.ideas2live4.com/wp-content/uploads/sites/4/2018/05/Tuna-Can-Swing-Out-Storage-Tower-04.jpg>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://craft.ideas2live4.com/2018/06/11/diy-swing-out-storage-tower-from-tuna-cans/>