Compound exercises

SELECT * FROM gallery2 WHERE topic_id="808947" UNION SELECT * FROM gallery2 WHERE topic_id="1697701" UNION SELECT * FROM gallery2 WHERE topic_id="809691" UNION SELECT * FROM gallery2 WHERE topic_id="721108" UNION SELECT * FROM gallery2 WHERE topic_id="595604" UNION SELECT * FROM gallery2 WHERE topic_id="415212" UNION SELECT * FROM gallery2 WHERE topic_id="944956" UNION SELECT * FROM gallery2 WHERE topic_id="1681622" UNION SELECT * FROM gallery2 WHERE topic_id="372799" UNION SELECT * FROM gallery2 WHERE topic_id="1257625" UNION SELECT * FROM gallery2 WHERE topic_id="1698540" UNION SELECT * FROM gallery2 WHERE topic_id="1813486" UNION SELECT * FROM gallery2 WHERE topic_id="1016601" UNION SELECT * FROM gallery2 WHERE topic_id="909407" UNION SELECT * FROM gallery2 WHERE topic_id="1453225" UNION SELECT * FROM gallery2 WHERE topic_id="804055"