About: http://webisa.webdatacommons.org/437842269

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	thank you...I see a lot of example but I know that MAC address is a unique identifier assigned to network interfaces...and so I think that every device need to have his own MAC address...
http://www.w3.org/ns/prov#wasQuotedFrom	arduino.cc