Big cans...

SELECT * FROM gallery2 WHERE topic_id="847659" UNION SELECT * FROM gallery2 WHERE topic_id="948974" UNION SELECT * FROM gallery2 WHERE topic_id="1505101" UNION SELECT * FROM gallery2 WHERE topic_id="83628" UNION SELECT * FROM gallery2 WHERE topic_id="1401384" UNION SELECT * FROM gallery2 WHERE topic_id="121677" UNION SELECT * FROM gallery2 WHERE topic_id="297612" UNION SELECT * FROM gallery2 WHERE topic_id="329776" UNION SELECT * FROM gallery2 WHERE topic_id="610263" UNION SELECT * FROM gallery2 WHERE topic_id="1709150" UNION SELECT * FROM gallery2 WHERE topic_id="1781217" UNION SELECT * FROM gallery2 WHERE topic_id="24004" UNION SELECT * FROM gallery2 WHERE topic_id="1183379" UNION SELECT * FROM gallery2 WHERE topic_id="1778252" UNION SELECT * FROM gallery2 WHERE topic_id="923648" UNION SELECT * FROM gallery2 WHERE topic_id="200513"