int fID = Integer.parseInt(e.getChildText("falseChild"));
String condition = e.getChildText("condition");
Element conclusion = e.getChild("conclusion");
Element cornerstone = e.getChild("cornerstone");
RdrNode pNode = tree.getNode(parent);
RdrNode tNode = tree.getNode(tID);
RdrNode fNode = tree.getNode(fID);
return new RdrNode(id, pNode, tNode, fNode, condition, conclusion, cornerstone) ;
}