About: http://webisa.webdatacommons.org/439461714

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	Some metals, such as zinc and iron are required in trace amounts for many biological functions.
http://www.w3.org/ns/prov#wasQuotedFrom	unsw.edu.au