public static InternalCompositeUnit virtual_toInternal_1525172282798172010(SNode thisNode) {
   return new InternalCompositeUnit()
       .add(
           Unit_Behavior.call_toInternal_1525172282798172010(
               SLinkOperations.getTarget(thisNode, "numerator", true)))
       .add(
           Unit_Behavior.call_toInternal_1525172282798172010(
                   SLinkOperations.getTarget(thisNode, "denominator", true))
               .inverse());
 }
 public static String virtual_toString_7203693294560873740(SNode thisNode) {
   StringBuffer bf = new StringBuffer();
   bf.append(
       Unit_Behavior.call_toString_7203693294560873740(
           SLinkOperations.getTarget(thisNode, "numerator", true)));
   bf.append(" / ");
   bf.append(
       Unit_Behavior.call_toString_7203693294560873740(
           SLinkOperations.getTarget(thisNode, "denominator", true)));
   return bf.toString();
 }