About: http://webisa.webdatacommons.org/228489500

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	* todo: Do not reset the value when the key is a button that do not alter the text.
http://www.w3.org/ns/prov#wasQuotedFrom	php.net