PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In addition to its well-known advantages with regards to weight and thermal conductivity, it offers an acceptable density.After all, every kilogram to be carried into space costs many thousand dollars; the exact amount depends on factors such as the carrier system and the orbit to be reached.
http://www.w3.org/ns/prov#wasQuotedFrom
  • engineering.com