<https://swapps.com/es/blog/como-probar-sus-content-types-con-el-modulo-devel-en-drupal-8/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://swapps.com/es/blog/como-probar-sus-content-types-con-el-modulo-devel-en-drupal-8/>