PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Titanium is a centering element that goes from Yellow to Orange, than Red to Brown and Brown to Blue in the Rutile crystal.
http://www.w3.org/ns/prov#wasQuotedFrom
  • realcolorwheel.com