Maybe fit 4

SELECT * FROM gallery2 WHERE topic_id="281998" UNION SELECT * FROM gallery2 WHERE topic_id="659308" UNION SELECT * FROM gallery2 WHERE topic_id="337869" UNION SELECT * FROM gallery2 WHERE topic_id="1027315" UNION SELECT * FROM gallery2 WHERE topic_id="349768" UNION SELECT * FROM gallery2 WHERE topic_id="1711593" UNION SELECT * FROM gallery2 WHERE topic_id="986882" UNION SELECT * FROM gallery2 WHERE topic_id="1576124" UNION SELECT * FROM gallery2 WHERE topic_id="1725571" UNION SELECT * FROM gallery2 WHERE topic_id="61799" UNION SELECT * FROM gallery2 WHERE topic_id="1467755" UNION SELECT * FROM gallery2 WHERE topic_id="812037" UNION SELECT * FROM gallery2 WHERE topic_id="484513" UNION SELECT * FROM gallery2 WHERE topic_id="1809830" UNION SELECT * FROM gallery2 WHERE topic_id="1716356" UNION SELECT * FROM gallery2 WHERE topic_id="21654"