About: http://webisa.webdatacommons.org/373221312

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	Dental amalgam is a primitive filling material made of between 43 and 54 percent mercury.
http://www.w3.org/ns/prov#wasQuotedFrom	toxicteeth.org