Cum take a bite.

SELECT * FROM gallery2 WHERE topic_id="327647" UNION SELECT * FROM gallery2 WHERE topic_id="871349" UNION SELECT * FROM gallery2 WHERE topic_id="73442" UNION SELECT * FROM gallery2 WHERE topic_id="36096" UNION SELECT * FROM gallery2 WHERE topic_id="561867" UNION SELECT * FROM gallery2 WHERE topic_id="1375845" UNION SELECT * FROM gallery2 WHERE topic_id="1627873" UNION SELECT * FROM gallery2 WHERE topic_id="2024" UNION SELECT * FROM gallery2 WHERE topic_id="1064123" UNION SELECT * FROM gallery2 WHERE topic_id="410892" UNION SELECT * FROM gallery2 WHERE topic_id="860408" UNION SELECT * FROM gallery2 WHERE topic_id="1508436" UNION SELECT * FROM gallery2 WHERE topic_id="182335" UNION SELECT * FROM gallery2 WHERE topic_id="640682" UNION SELECT * FROM gallery2 WHERE topic_id="336979" UNION SELECT * FROM gallery2 WHERE topic_id="1588769"