From c6b4a4a1f86f9d915f9c07d5bead4285e1cc86e9 Mon Sep 17 00:00:00 2001
From: Gregg Kellogg Semantic Conditions for Ground Graphs
otherwise, I(E) = false.
If E is a ground RDF graph and I(E') = false for some triple E' in E, then I(E) = false; otherwise, I(E) = true. +
If E is a ground RDF graph
+ then I(E) = true if
+ I(p) is in IP and the pair <I(s),I(o)>
+ is in IEXT(I(p))
+ otherwise I(E) = false.
If E is an RDF graph and [I + A](E) = true +
If E is an RDF graph then I(E) = true if [I+A](E) = true for some mapping A from the set of blank nodes in E - to IR, then I(E) = true; - otherwise, I(E) = false. + to IR, otherwise I(E) = false.