About: http://webisa.webdatacommons.org/90467442

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	From then-on, the first node may need only continue re-adjusting every thirty minutes, every hour, or at whatever time increment is sufficient to compensate for temperature changes, aging, and other factors.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com