PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This laser generates a horizontal line that can to some extent (only on the horizontal plane) show sound coverage, but gives no indication of vertical sound coverage, which is also particularly important and necessary in live show applications, if one considers the large vertical dispersion required in arenas and in public show venues such as theatres and auditoria.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com