PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Natural images such as bi-level images generated from photographs, and especially images in which different shades of gray are represented by dot patterns generated using a dithering matrix, are much harder to compress; lossy compression methods must be often employed if adequate compression ratios are to be achieved.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com