4th

SELECT * FROM gallery2 WHERE topic_id="437045" UNION SELECT * FROM gallery2 WHERE topic_id="1544159" UNION SELECT * FROM gallery2 WHERE topic_id="1621710" UNION SELECT * FROM gallery2 WHERE topic_id="16758" UNION SELECT * FROM gallery2 WHERE topic_id="1594325" UNION SELECT * FROM gallery2 WHERE topic_id="1359212" UNION SELECT * FROM gallery2 WHERE topic_id="271971" UNION SELECT * FROM gallery2 WHERE topic_id="1177023" UNION SELECT * FROM gallery2 WHERE topic_id="495960" UNION SELECT * FROM gallery2 WHERE topic_id="483292" UNION SELECT * FROM gallery2 WHERE topic_id="879788" UNION SELECT * FROM gallery2 WHERE topic_id="1759059" UNION SELECT * FROM gallery2 WHERE topic_id="1459829" UNION SELECT * FROM gallery2 WHERE topic_id="1040348" UNION SELECT * FROM gallery2 WHERE topic_id="1385929" UNION SELECT * FROM gallery2 WHERE topic_id="1666973"