PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Lenslok is a copy protection mechanism found in some computer games and other software on the 8-bit Atari computers, Commodore 64, Sinclair ZX Spectrum, Sinclair QL, MSX and Amstrad CPC. The most famous game to use it was Elite for the ZX Spectrum.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikipedia.org