About: http://webisa.webdatacommons.org/412809221

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	We discovered a series of substances which are specific to paintings and pictures, he said, including lead, zinc and azurite.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com