Spot the difference

SELECT * FROM gallery2 WHERE topic_id="472603" UNION SELECT * FROM gallery2 WHERE topic_id="439683" UNION SELECT * FROM gallery2 WHERE topic_id="1046820" UNION SELECT * FROM gallery2 WHERE topic_id="488540" UNION SELECT * FROM gallery2 WHERE topic_id="340198" UNION SELECT * FROM gallery2 WHERE topic_id="1662671" UNION SELECT * FROM gallery2 WHERE topic_id="1152029" UNION SELECT * FROM gallery2 WHERE topic_id="853415" UNION SELECT * FROM gallery2 WHERE topic_id="823108" UNION SELECT * FROM gallery2 WHERE topic_id="1497197" UNION SELECT * FROM gallery2 WHERE topic_id="1254366" UNION SELECT * FROM gallery2 WHERE topic_id="203313" UNION SELECT * FROM gallery2 WHERE topic_id="1384110" UNION SELECT * FROM gallery2 WHERE topic_id="780703" UNION SELECT * FROM gallery2 WHERE topic_id="1612491" UNION SELECT * FROM gallery2 WHERE topic_id="465581"