About: http://webisa.webdatacommons.org/72961518

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	The ring may use any protocol, e.g. Sonet, SDH, Ethernet, RPR, Token-Ring, so long as the protocol provides protection against failure of any single ring span.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com