PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Chelation therapy can be used to remove heavy metals, such as lead, iron, mercury, copper, nickel, zinc, cadmium, beryllium, and arsenic.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wellness.com