help me out of this

SELECT * FROM gallery2 WHERE topic_id="1120527" UNION SELECT * FROM gallery2 WHERE topic_id="1758508" UNION SELECT * FROM gallery2 WHERE topic_id="1634990" UNION SELECT * FROM gallery2 WHERE topic_id="1257626" UNION SELECT * FROM gallery2 WHERE topic_id="988205" UNION SELECT * FROM gallery2 WHERE topic_id="502092" UNION SELECT * FROM gallery2 WHERE topic_id="322859" UNION SELECT * FROM gallery2 WHERE topic_id="415630" UNION SELECT * FROM gallery2 WHERE topic_id="1685524" UNION SELECT * FROM gallery2 WHERE topic_id="495641" UNION SELECT * FROM gallery2 WHERE topic_id="139247" UNION SELECT * FROM gallery2 WHERE topic_id="1024929" UNION SELECT * FROM gallery2 WHERE topic_id="1013468" UNION SELECT * FROM gallery2 WHERE topic_id="260819" UNION SELECT * FROM gallery2 WHERE topic_id="322011" UNION SELECT * FROM gallery2 WHERE topic_id="657535"