Set<Entry<KamNode, KamNode>> set = collapsed.entrySet();
for (Entry<KamNode, KamNode> e : set) {
KamNode collapsing = e.getKey();
KamNode collapseTo = e.getValue();
collapsing = kam.findNode(collapsing.getId());
collapseTo = kam.findNode(collapseTo.getId());
kamstore.collapseKamNode(info, collapsing, collapseTo);
}
// remove orthologous edges/statements