For you

SELECT * FROM gallery2 WHERE topic_id="1298489" UNION SELECT * FROM gallery2 WHERE topic_id="105095" UNION SELECT * FROM gallery2 WHERE topic_id="1507246" UNION SELECT * FROM gallery2 WHERE topic_id="1016894" UNION SELECT * FROM gallery2 WHERE topic_id="178647" UNION SELECT * FROM gallery2 WHERE topic_id="1816741" UNION SELECT * FROM gallery2 WHERE topic_id="1519126" UNION SELECT * FROM gallery2 WHERE topic_id="1190996" UNION SELECT * FROM gallery2 WHERE topic_id="1340674" UNION SELECT * FROM gallery2 WHERE topic_id="1438930" UNION SELECT * FROM gallery2 WHERE topic_id="1721643" UNION SELECT * FROM gallery2 WHERE topic_id="1378882" UNION SELECT * FROM gallery2 WHERE topic_id="1156734" UNION SELECT * FROM gallery2 WHERE topic_id="911212" UNION SELECT * FROM gallery2 WHERE topic_id="684953" UNION SELECT * FROM gallery2 WHERE topic_id="550323"