About: http://webisa.webdatacommons.org/8537204

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 second material may take the form of platinum iridium, gold, tantalum, platinum, tungsten carbide, and other radio-opaque materials.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com