PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Gallium: the backbone of the electronics industry Microsoft Academic Search Gallium is a silvery blue and soft metallic element that enjoys vast application in optoelectronics (e.g., LED???s), telecommunication, aerospace, and many commercial and household items such as alloys, computers and DVD???s.
http://www.w3.org/ns/prov#wasQuotedFrom
  • science.gov