About: http://webisa.webdatacommons.org/21087618

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	They allow you to print any message that you want to, along with the time and the connection/thread ID of the thread executing the procedure??? something that was invaluable in debugging what we thought at first was a race condition.
http://www.w3.org/ns/prov#wasQuotedFrom	bluegecko.net