DELETE FROM mangos_string WHERE entry IN (518,521);
INSERT INTO mangos_string VALUES
(518,'%d - |cffffffff|Hitemset:%d|h[%s %s]|h|r ',NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL),
(521,'%d - |cffffffff|Hskill:%d|h[%s %s]|h|r %s',NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL);