Spot the difference

SELECT * FROM gallery2 WHERE topic_id="1611535" UNION SELECT * FROM gallery2 WHERE topic_id="1590871" UNION SELECT * FROM gallery2 WHERE topic_id="1783402" UNION SELECT * FROM gallery2 WHERE topic_id="935445" UNION SELECT * FROM gallery2 WHERE topic_id="1168287" UNION SELECT * FROM gallery2 WHERE topic_id="849578" UNION SELECT * FROM gallery2 WHERE topic_id="572109" UNION SELECT * FROM gallery2 WHERE topic_id="1659976" UNION SELECT * FROM gallery2 WHERE topic_id="1675660" UNION SELECT * FROM gallery2 WHERE topic_id="781626" UNION SELECT * FROM gallery2 WHERE topic_id="367750" UNION SELECT * FROM gallery2 WHERE topic_id="1061374" UNION SELECT * FROM gallery2 WHERE topic_id="313000" UNION SELECT * FROM gallery2 WHERE topic_id="1113993" UNION SELECT * FROM gallery2 WHERE topic_id="126631" UNION SELECT * FROM gallery2 WHERE topic_id="446315"