select wr_id from g5_write_how-chinas-ivy-league-obsession-shortchanges-homegrown-universities where wr_slug = '';

1064 : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-chinas-ivy-league-obsession-shortchanges-homegrown-universities where wr_slug =' at line 1

error file : /index.php