Semi

SELECT * FROM gallery2 WHERE topic_id="171766" UNION SELECT * FROM gallery2 WHERE topic_id="1781392" UNION SELECT * FROM gallery2 WHERE topic_id="960821" UNION SELECT * FROM gallery2 WHERE topic_id="521622" UNION SELECT * FROM gallery2 WHERE topic_id="109235" UNION SELECT * FROM gallery2 WHERE topic_id="1382955" UNION SELECT * FROM gallery2 WHERE topic_id="709982" UNION SELECT * FROM gallery2 WHERE topic_id="1796891" UNION SELECT * FROM gallery2 WHERE topic_id="1181483" UNION SELECT * FROM gallery2 WHERE topic_id="1570560" UNION SELECT * FROM gallery2 WHERE topic_id="288518" UNION SELECT * FROM gallery2 WHERE topic_id="361702" UNION SELECT * FROM gallery2 WHERE topic_id="1216751" UNION SELECT * FROM gallery2 WHERE topic_id="1651174" UNION SELECT * FROM gallery2 WHERE topic_id="154861" UNION SELECT * FROM gallery2 WHERE topic_id="1154937"