About: http://webisa.webdatacommons.org/423278881

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	The solid medium 33 is made of, for example, stone, ceramic, or metal oxide such as iron oxide.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com