<https://www.mentalfloss.com/article/51793/www.mentalfloss.com/article/51793/pitch-drip-dripped-\u2018round-world>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.mentalfloss.com/article/51793/pitch-drip-dripped-%E2%80%98round-world>