About: http://webisa.webdatacommons.org/397373931

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 X-ray filter 16 may be made of copper, aluminum, iron, molybdenum, tin, barium, gadolinium, tungsten, lead or other suitable material.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com