Pick one [2]

SELECT * FROM gallery2 WHERE topic_id="278704" UNION SELECT * FROM gallery2 WHERE topic_id="988977" UNION SELECT * FROM gallery2 WHERE topic_id="1403154" UNION SELECT * FROM gallery2 WHERE topic_id="1537156" UNION SELECT * FROM gallery2 WHERE topic_id="1008948" UNION SELECT * FROM gallery2 WHERE topic_id="515326" UNION SELECT * FROM gallery2 WHERE topic_id="1335624" UNION SELECT * FROM gallery2 WHERE topic_id="1189055" UNION SELECT * FROM gallery2 WHERE topic_id="1442520" UNION SELECT * FROM gallery2 WHERE topic_id="187876" UNION SELECT * FROM gallery2 WHERE topic_id="31251" UNION SELECT * FROM gallery2 WHERE topic_id="1244512" UNION SELECT * FROM gallery2 WHERE topic_id="1390078" UNION SELECT * FROM gallery2 WHERE topic_id="201003" UNION SELECT * FROM gallery2 WHERE topic_id="727741" UNION SELECT * FROM gallery2 WHERE topic_id="874083"