About: http://webisa.webdatacommons.org/405956574

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	These elements include metals that form polyvalent cations such as zinc, copper, iron, manganese, cobalt, chromium, and molybdenum.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com