Choose one

SELECT * FROM gallery2 WHERE topic_id="255741" UNION SELECT * FROM gallery2 WHERE topic_id="313641" UNION SELECT * FROM gallery2 WHERE topic_id="1002912" UNION SELECT * FROM gallery2 WHERE topic_id="848539" UNION SELECT * FROM gallery2 WHERE topic_id="1529861" UNION SELECT * FROM gallery2 WHERE topic_id="1375990" UNION SELECT * FROM gallery2 WHERE topic_id="212715" UNION SELECT * FROM gallery2 WHERE topic_id="1622109" UNION SELECT * FROM gallery2 WHERE topic_id="46392" UNION SELECT * FROM gallery2 WHERE topic_id="497329" UNION SELECT * FROM gallery2 WHERE topic_id="994202" UNION SELECT * FROM gallery2 WHERE topic_id="283751" UNION SELECT * FROM gallery2 WHERE topic_id="1795393" UNION SELECT * FROM gallery2 WHERE topic_id="955523" UNION SELECT * FROM gallery2 WHERE topic_id="1080741" UNION SELECT * FROM gallery2 WHERE topic_id="258258"