Desperately need a BBC in me

SELECT * FROM gallery2 WHERE topic_id="1644689" UNION SELECT * FROM gallery2 WHERE topic_id="1172453" UNION SELECT * FROM gallery2 WHERE topic_id="921756" UNION SELECT * FROM gallery2 WHERE topic_id="1553600" UNION SELECT * FROM gallery2 WHERE topic_id="433655" UNION SELECT * FROM gallery2 WHERE topic_id="1444809" UNION SELECT * FROM gallery2 WHERE topic_id="1668015" UNION SELECT * FROM gallery2 WHERE topic_id="512925" UNION SELECT * FROM gallery2 WHERE topic_id="1668039" UNION SELECT * FROM gallery2 WHERE topic_id="644137" UNION SELECT * FROM gallery2 WHERE topic_id="1496247" UNION SELECT * FROM gallery2 WHERE topic_id="1259246" UNION SELECT * FROM gallery2 WHERE topic_id="282697" UNION SELECT * FROM gallery2 WHERE topic_id="415348" UNION SELECT * FROM gallery2 WHERE topic_id="1679709" UNION SELECT * FROM gallery2 WHERE topic_id="26264"