Choose one

SELECT * FROM gallery2 WHERE topic_id="1548686" UNION SELECT * FROM gallery2 WHERE topic_id="177106" UNION SELECT * FROM gallery2 WHERE topic_id="337832" UNION SELECT * FROM gallery2 WHERE topic_id="1253204" UNION SELECT * FROM gallery2 WHERE topic_id="1500296" UNION SELECT * FROM gallery2 WHERE topic_id="146902" UNION SELECT * FROM gallery2 WHERE topic_id="1264693" UNION SELECT * FROM gallery2 WHERE topic_id="669219" UNION SELECT * FROM gallery2 WHERE topic_id="1545078" UNION SELECT * FROM gallery2 WHERE topic_id="207803" UNION SELECT * FROM gallery2 WHERE topic_id="478155" UNION SELECT * FROM gallery2 WHERE topic_id="1311118" UNION SELECT * FROM gallery2 WHERE topic_id="1403920" UNION SELECT * FROM gallery2 WHERE topic_id="1727462" UNION SELECT * FROM gallery2 WHERE topic_id="1342907" UNION SELECT * FROM gallery2 WHERE topic_id="696795"