Searching for a Sub (F only)

SELECT * FROM gallery2 WHERE topic_id="246052" UNION SELECT * FROM gallery2 WHERE topic_id="729630" UNION SELECT * FROM gallery2 WHERE topic_id="80602" UNION SELECT * FROM gallery2 WHERE topic_id="33589" UNION SELECT * FROM gallery2 WHERE topic_id="1116468" UNION SELECT * FROM gallery2 WHERE topic_id="262274" UNION SELECT * FROM gallery2 WHERE topic_id="139814" UNION SELECT * FROM gallery2 WHERE topic_id="87002" UNION SELECT * FROM gallery2 WHERE topic_id="504643" UNION SELECT * FROM gallery2 WHERE topic_id="331357" UNION SELECT * FROM gallery2 WHERE topic_id="1077892" UNION SELECT * FROM gallery2 WHERE topic_id="588385" UNION SELECT * FROM gallery2 WHERE topic_id="1421488" UNION SELECT * FROM gallery2 WHERE topic_id="356743" UNION SELECT * FROM gallery2 WHERE topic_id="339977" UNION SELECT * FROM gallery2 WHERE topic_id="1559127"