<https://www.kecotabs.com/blogs/gpr-faq/how-long-can-i-make-pulls-after-adhering-the-glue-tab>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.kecotabs.com/blogs/gpr-faq/how-long-can-i-make-pulls-after-adhering-the-glue-tab>