About: http://webisa.webdatacommons.org/79564336

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	As the radio-opaque material, it is possible to use especially compounds which contain heavy metals such as barium or bismuth.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca