PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A very common method of production with a CNC machine or laser cutter is to cut flat sheets of material such as Acrylic, ABS, or POM. Adding an automated sheet feeder to the machine could allow a machine to operate nearly continuously by ejecting a finished sheet and then immediately loading the next sheet for processing.
http://www.w3.org/ns/prov#wasQuotedFrom
  • makezine.com