PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • So, in this space, Virtuoso is an engine that does support SQL, plus SPARQL, and is designed to do big joins and aggregation (i.e., analytics) and fast bulk load, as well as ACID transactions on small updates, all with column store space efficiency.
http://www.w3.org/ns/prov#wasQuotedFrom
  • openlinksw.com