PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • If the file format is designed around the presumption that there are no holes to start with then that difficult step of checking and fixing holes (and overlaps and other nastinesses) has to be put into every single file 'export' function.
http://www.w3.org/ns/prov#wasQuotedFrom
  • reprap.org