p	o
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/ssn/SystemCapability
http://www.w3.org/ns/ssn/hasSystemProperty	http://www.disit.org/km4city/resource/iot/orionUNIFI/DISIT/METRO1/frequency