PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Ansoft Corp., Four Station Square Ste. 660, Pittsburgh, PA 15219; FAX (412) 471-9427; www.ansoft.com.??? Viewer According to the company, ST-Viewer for Windows NT 9/x is an inexpensive tool for sharing STEP-based 3D models with CAD/CAM/CAE and PDM systems, part libraries, and databases.
http://www.w3.org/ns/prov#wasQuotedFrom
  • designnews.com