PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Of course the silicon tube 6 which forms the reaction chamber need not be cylindrical as shown but could be polygonal in cross-section, e.g. a tube having a square, rectangular, hexagonal or octagonal cross-sectional shape.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com