What do you think ? ;)

SELECT * FROM gallery2 WHERE topic_id="556578" UNION SELECT * FROM gallery2 WHERE topic_id="32365" UNION SELECT * FROM gallery2 WHERE topic_id="1169752" UNION SELECT * FROM gallery2 WHERE topic_id="11480" UNION SELECT * FROM gallery2 WHERE topic_id="1160087" UNION SELECT * FROM gallery2 WHERE topic_id="1432237" UNION SELECT * FROM gallery2 WHERE topic_id="63314" UNION SELECT * FROM gallery2 WHERE topic_id="426196" UNION SELECT * FROM gallery2 WHERE topic_id="1439724" UNION SELECT * FROM gallery2 WHERE topic_id="1204424" UNION SELECT * FROM gallery2 WHERE topic_id="1533429" UNION SELECT * FROM gallery2 WHERE topic_id="1385920" UNION SELECT * FROM gallery2 WHERE topic_id="129706" UNION SELECT * FROM gallery2 WHERE topic_id="1107828" UNION SELECT * FROM gallery2 WHERE topic_id="1392224" UNION SELECT * FROM gallery2 WHERE topic_id="505568"