PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Incorporating chain and pulley systems, unique lifting mechanisms, etc., renders the systems complicated and expensive to build, prone to breakage, and increases maintenance time and costs.Accordingly, there is a continuing need for an automated storage and retrieval system which is simplified, efficient and comparatively inexpensive.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com