About: http://webisa.webdatacommons.org/56327601

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	Similarly, such metals as vanadium and nickel may be found, while salts of many other metals are frequently present in traces.
http://www.w3.org/ns/prov#wasQuotedFrom	niir.org