Stacked indeed

SELECT * FROM gallery2 WHERE topic_id="1401602" UNION SELECT * FROM gallery2 WHERE topic_id="1295554" UNION SELECT * FROM gallery2 WHERE topic_id="1771315" UNION SELECT * FROM gallery2 WHERE topic_id="761962" UNION SELECT * FROM gallery2 WHERE topic_id="1556646" UNION SELECT * FROM gallery2 WHERE topic_id="1029862" UNION SELECT * FROM gallery2 WHERE topic_id="990280" UNION SELECT * FROM gallery2 WHERE topic_id="649055" UNION SELECT * FROM gallery2 WHERE topic_id="1341813" UNION SELECT * FROM gallery2 WHERE topic_id="1674435" UNION SELECT * FROM gallery2 WHERE topic_id="991543" UNION SELECT * FROM gallery2 WHERE topic_id="1788812" UNION SELECT * FROM gallery2 WHERE topic_id="1176958" UNION SELECT * FROM gallery2 WHERE topic_id="1809214" UNION SELECT * FROM gallery2 WHERE topic_id="1224327" UNION SELECT * FROM gallery2 WHERE topic_id="390908"