<https://4pincflbulbremover.blogspot.com/2019/11/4-pin-cfl-bulb-remover.html>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://4pincflbulbremover.blogspot.com/2019/11/4-pin-cfl-bulb-remover.html>