Index: /SPARQLBuilderWWW/src/java/org/biohackathon/SPARQLBuilder/OWL/OWLClassGraph.java
===================================================================
--- /SPARQLBuilderWWW/src/java/org/biohackathon/SPARQLBuilder/OWL/OWLClassGraph.java (revision 249)
+++ /SPARQLBuilderWWW/src/java/org/biohackathon/SPARQLBuilder/OWL/OWLClassGraph.java (revision 250)
@@ -397,5 +397,5 @@
        if (crr == null ){
            crr = edge.getNumOfOriginClassInstances();
-           weight.put(node2, crr);           
+           weight.put(node1, crr);
        }
        if ( crr < edge.getNumOfOriginClassInstances() ){
Index: /SPARQLBuilderWWW/src/java/org/biohackathon/SPARQLBuilder/www/CLServlet.java
===================================================================
--- /SPARQLBuilderWWW/src/java/org/biohackathon/SPARQLBuilder/www/CLServlet.java (revision 248)
+++ /SPARQLBuilderWWW/src/java/org/biohackathon/SPARQLBuilder/www/CLServlet.java (revision 250)
@@ -94,5 +94,5 @@
             //}
             if ( classURI != null ){
-                if ( qpg.getOWLClassGraph().visitedNode(classURI) == false ){
+                if ( qpg.getOWLClassGraph().visitedNode(uri) == false ){
                     continue;
                 }