About: http://webisa.webdatacommons.org/209404663

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	Typically M is a divalent metal ion or a trivalent metal ion, such as any one of cadmium, zinc, lead, mercury, indium gallium, including combinations thereof.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com