@Override
    public String getPresentationText(PsiCallExpression call) {
      if (myLeft instanceof IndependentValue) {
        return myRight.getPresentationText(call) + " " + myRelationType.getFlipped() + " " + myLeft.getPresentationText(call);
      }
      return myLeft.getPresentationText(call) + " " + myRelationType + " " + myRight.getPresentationText(call);
    }
@Override
    public String getPresentationText(PsiCallExpression call)