<https://forum.gitarnorge.no/topic/29143-sp%C3%B8rsm%C3%A5l-om-en-gibson-les-paul/#comment-400556>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://forum.gitarnorge.no/topic/29143-sp%C3%B8rsm%C3%A5l-om-en-gibson-les-paul/>