About: http://webisa.webdatacommons.org/75235141

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	Chelates are molecular structures with negatively charged groups surrounding a metallic ion, and are used clinically to bind and remove heavy metals such as lead and mercury.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com