About: http://webisa.webdatacommons.org/274362198

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	Preferred examples of the metal include lithium, sodium, potassium, cesium, magnesium, calcium, strontium, and barium. Examples of the metal complex include complexes of copper, zinc, iron, cobalt, nickel, molybdenum, and tungsten.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com