public function __construct()
 {
     parent::__construct('Teacher');
 }
 public function __construct()
 {
     parent::__construct('StudentRecord');
 }
 public function __construct()
 {
     parent::__construct('Schedule');
 }
 public function __construct()
 {
     parent::__construct('CourseSection');
 }
 public function __construct()
 {
     parent::__construct('Career');
 }
 public function __construct()
 {
     parent::__construct('TimePeriod');
 }
 public function __construct()
 {
     parent::__construct('Turn');
 }
 public function __construct()
 {
     parent::__construct('ClassRoom');
 }
 public function __construct()
 {
     parent::__construct('StudentGrade');
 }
 public function __construct()
 {
     parent::__construct('Subject');
 }