About: http://webisa.webdatacommons.org/141332672

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	By default in PHP, errors such as undefined variable can go un noticed and allow the script to continue.
http://www.w3.org/ns/prov#wasQuotedFrom	sitepoint.com