PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As a result, when strict cluster screens are used, there are relatively few background levels to choose from, i.e. the requirement of small average dot spacing, i.e. greater than 100 lpi, limits the number of intensity levels that can be achieved on a typical 600 dpi printer, e.g. at 120 lpi there are only 26 possible intensity levels.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com