1 files changed, 3 insertions, 2 deletions

diff --git a/src/uk/ac/ox/cs/pagoda/query/rollup/QueryGraph.java b/src/uk/ac/ox/cs/pagoda/query/rollup/QueryGraph.java
index a09cf5b..116e724 100644
--- a/src/uk/ac/ox/cs/pagoda/query/rollup/QueryGraph.java
+++ b/src/uk/ac/ox/cs/pagoda/query/rollup/QueryGraph.java
@@ -102,16 +102,17 @@ public class QueryGraph {
 //              return axioms;
 //      }
 
-        public Set<OWLAxiom> getExistentialAxioms() {
+        public Set<OWLAxiom> getExistentialAxioms(Map<Variable, Term> assignment) {
                 if(!rollable_edges.isEmpty()) return null;
 
+                Visitor visitor = new Visitor(factory, assignment);
                 Set<OWLAxiom> axioms = new HashSet<>();
                 for(Map.Entry<Term, Set<OWLClassExpression>> entry : concepts.map.entrySet()) {
                         if(existVars.contains(entry.getKey())) {
                                 OWLClassExpression conjunction =
                                                 factory.getOWLObjectIntersectionOf(factory.getOWLThing());
                                 for(OWLClassExpression owlClassExpression : entry.getValue()) {
-                                        conjunction = factory.getOWLObjectIntersectionOf(conjunction, owlClassExpression);
+                                        conjunction = factory.getOWLObjectIntersectionOf(conjunction, owlClassExpression.accept(visitor));
                                 }
                                 axioms.add(factory.getOWLSubClassOfAxiom(conjunction, factory.getOWLNothing()));
                         }