PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The B+ tree is a widely used data structure for storing and retrieving records for both direct and sequential access, as described in Comer, D., The Ubiquitous B-tree, ACM Computer Surveys, Vol. 11, No. 2, pp. 121-137 (1979).
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com