About: http://webisa.webdatacommons.org/356206983

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	Trace minerals may include materials such as cobalt carbonate, copper sulfate, potassium iodide, iron sulfate, manganous oxide, and zinc oxide.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com