PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • McDonnell Douglas converted one of its S-IVB sections into Skylab, America???s first space station, which was placed into orbit May 14, 1973, by the 13th Saturn V. The section???s internal fuel tanks were converted into an orbital workshop for a three-person crew, with sleeping quarters and storage areas for food, water and other supplies.
http://www.w3.org/ns/prov#wasQuotedFrom
  • boeing.com