<https://www.internet4things.it/iot-library/pilota-droni-apr-cosa-fa-e-come-diventarlo/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.internet4things.it/iot-library/pilota-droni-apr-cosa-fa-e-come-diventarlo/>