term caching for instanciation of s,p,o, and o (graph) terms (performance)
term caching for instanciation of s,p,o, and o (graph) terms (performance)

git-svn-id: 60eb48102d1ca0c284ab3654bef916b01e1b221b@607 4f84a9ca-5c3e-0410-8a68-0bdf370325d5

nwebs/rdflib