About: http://webisa.webdatacommons.org/203837777

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	This is especially useful when you are trying to work out what happened before header() is called, or other situations where you can not print to STDOUT.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com