PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In the past decade, a growing lack of engineers, natural scientists, information technology experts, and mathematicians has been noted, especially in Europe.
http://www.w3.org/ns/prov#wasQuotedFrom
  • science.gov