SQL syntax error in query:

(SELECT * FROM `article_tags` WHERE `Tag_lang3` IN ('rabbits',' rabbit's breeding')) UNION (SELECT * FROM `article_tags` WHERE `Tag_lang3` NOT IN ('rabbits',' rabbit's breeding') ORDER BY `Quantity_lang3` DESC LIMIT 18) ORDER BY `Quantity_lang3` DESC

#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 's breeding')) UNION (SELECT * FROM `article_tags` WHERE `Tag_lang3` NOT IN ('rab' at line 1