PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Michio Kaku is a theoretical physicist and co-founder of the string field theory, a branch of the string theory.
http://www.w3.org/ns/prov#wasQuotedFrom
  • youtubedocumentaries.com