About: http://webisa.webdatacommons.org/397004735

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	Their list includes PHP-related events such as the International PHP Conference and events surrounding many other technologies like Ruby, Photoshop, MySQL, Javascript and lots of other more business-minded sort of events.
http://www.w3.org/ns/prov#wasQuotedFrom	phpdeveloper.org