PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Potassium is a mineral represented on the periodic table of the elements with the atomic number 19, identified with the symbol K. It is a soft metal found in the Earth???s crust and in many foods, and is generally essential to maintain optimal health.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wisegeek.com