<https://www.router-reset.com/the-difference-of-1g-2g-3g-4g-and-5g-connection>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.router-reset.com/the-difference-of-1g-2g-3g-4g-and-5g-connection>