docs: @Override
    public void eUnset(int featureID)
    {
      switch (featureID)
      {
        case SimpleExpressionsPackage.COMPARISON__LEFT:
          setLeft((Expression)null);
          return;
        case SimpleExpressionsPackage.COMPARISON__OPERATOR:
          setOperator(OPERATOR_EDEFAULT);
          return;
        case SimpleExpressionsPackage.COMPARISON__RIGHT:
          setRight((Expression)null);
          return;
      }
      super.eUnset(featureID);
    }