Mildly

SELECT * FROM gallery2 WHERE topic_id="291962" UNION SELECT * FROM gallery2 WHERE topic_id="1022510" UNION SELECT * FROM gallery2 WHERE topic_id="1159127" UNION SELECT * FROM gallery2 WHERE topic_id="1695239" UNION SELECT * FROM gallery2 WHERE topic_id="312029" UNION SELECT * FROM gallery2 WHERE topic_id="1134775" UNION SELECT * FROM gallery2 WHERE topic_id="891450" UNION SELECT * FROM gallery2 WHERE topic_id="1514492" UNION SELECT * FROM gallery2 WHERE topic_id="969424" UNION SELECT * FROM gallery2 WHERE topic_id="347236" UNION SELECT * FROM gallery2 WHERE topic_id="50792" UNION SELECT * FROM gallery2 WHERE topic_id="666040" UNION SELECT * FROM gallery2 WHERE topic_id="1155352" UNION SELECT * FROM gallery2 WHERE topic_id="1368152" UNION SELECT * FROM gallery2 WHERE topic_id="160541" UNION SELECT * FROM gallery2 WHERE topic_id="1243124"