Where would you start?

SELECT * FROM gallery2 WHERE topic_id="625930" UNION SELECT * FROM gallery2 WHERE topic_id="1224114" UNION SELECT * FROM gallery2 WHERE topic_id="817204" UNION SELECT * FROM gallery2 WHERE topic_id="42508" UNION SELECT * FROM gallery2 WHERE topic_id="195201" UNION SELECT * FROM gallery2 WHERE topic_id="798518" UNION SELECT * FROM gallery2 WHERE topic_id="351015" UNION SELECT * FROM gallery2 WHERE topic_id="1419607" UNION SELECT * FROM gallery2 WHERE topic_id="504659" UNION SELECT * FROM gallery2 WHERE topic_id="1628848" UNION SELECT * FROM gallery2 WHERE topic_id="1509776" UNION SELECT * FROM gallery2 WHERE topic_id="939037" UNION SELECT * FROM gallery2 WHERE topic_id="647660" UNION SELECT * FROM gallery2 WHERE topic_id="1665369" UNION SELECT * FROM gallery2 WHERE topic_id="569058" UNION SELECT * FROM gallery2 WHERE topic_id="1610915"