About: http://webisa.webdatacommons.org/357468816

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	Color centers are also produced in various metal oxides and particularly the oxides of zinc, titanium, vanadium, tin, aluminum, indium, manganese, antimony, bismuth, molybdenum, tungsten, tantalum, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com