About: http://webisa.webdatacommons.org/360472151

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	Accordingly, for certain types of information, there are advantages to generating a ???heartbeat??? (e.g., once every second or once every minute) to facilitate the logging of this type of information.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com