PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Unlike most other metals you are probably familiar with, such as iron or copper, titanium is a relatively 'modern metal', in that it was not produced commercially until the 1940s.
http://www.w3.org/ns/prov#wasQuotedFrom
  • australianminesatlas.gov.au