About: http://webisa.webdatacommons.org/402123092

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	wherein the first protocol comprises an SDH protocol or a SONET protocol, the second protocol comprises a PTP, the first information is a synchronous status message (SSM), and the second information is PTP clock class information.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com