I can't choose

SELECT * FROM gallery2 WHERE topic_id="847571" UNION SELECT * FROM gallery2 WHERE topic_id="845185" UNION SELECT * FROM gallery2 WHERE topic_id="1238522" UNION SELECT * FROM gallery2 WHERE topic_id="1206857" UNION SELECT * FROM gallery2 WHERE topic_id="1743411" UNION SELECT * FROM gallery2 WHERE topic_id="1769792" UNION SELECT * FROM gallery2 WHERE topic_id="620027" UNION SELECT * FROM gallery2 WHERE topic_id="1276187" UNION SELECT * FROM gallery2 WHERE topic_id="1093334" UNION SELECT * FROM gallery2 WHERE topic_id="1144956" UNION SELECT * FROM gallery2 WHERE topic_id="974775" UNION SELECT * FROM gallery2 WHERE topic_id="670178" UNION SELECT * FROM gallery2 WHERE topic_id="904560" UNION SELECT * FROM gallery2 WHERE topic_id="232463" UNION SELECT * FROM gallery2 WHERE topic_id="225326" UNION SELECT * FROM gallery2 WHERE topic_id="1660092"