<https://blogs.protectedharbor.com/how-many-virtual-machines-can-you-run-at-the-same-time/#breadcrumb>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://blogs.protectedharbor.com/how-many-virtual-machines-can-you-run-at-the-same-time/>