Inversion

SELECT * FROM gallery2 WHERE topic_id="189804" UNION SELECT * FROM gallery2 WHERE topic_id="843646" UNION SELECT * FROM gallery2 WHERE topic_id="1373258" UNION SELECT * FROM gallery2 WHERE topic_id="909791" UNION SELECT * FROM gallery2 WHERE topic_id="412672" UNION SELECT * FROM gallery2 WHERE topic_id="1478084" UNION SELECT * FROM gallery2 WHERE topic_id="1206125" UNION SELECT * FROM gallery2 WHERE topic_id="334990" UNION SELECT * FROM gallery2 WHERE topic_id="545648" UNION SELECT * FROM gallery2 WHERE topic_id="1703475" UNION SELECT * FROM gallery2 WHERE topic_id="1785742" UNION SELECT * FROM gallery2 WHERE topic_id="1570613" UNION SELECT * FROM gallery2 WHERE topic_id="57441" UNION SELECT * FROM gallery2 WHERE topic_id="780365" UNION SELECT * FROM gallery2 WHERE topic_id="1297548" UNION SELECT * FROM gallery2 WHERE topic_id="1674341"