Indifferent expression

SELECT * FROM gallery2 WHERE topic_id="400916" UNION SELECT * FROM gallery2 WHERE topic_id="485929" UNION SELECT * FROM gallery2 WHERE topic_id="377422" UNION SELECT * FROM gallery2 WHERE topic_id="1563070" UNION SELECT * FROM gallery2 WHERE topic_id="1090592" UNION SELECT * FROM gallery2 WHERE topic_id="1547967" UNION SELECT * FROM gallery2 WHERE topic_id="467983" UNION SELECT * FROM gallery2 WHERE topic_id="1466957" UNION SELECT * FROM gallery2 WHERE topic_id="751991" UNION SELECT * FROM gallery2 WHERE topic_id="137629" UNION SELECT * FROM gallery2 WHERE topic_id="1073184" UNION SELECT * FROM gallery2 WHERE topic_id="1278179" UNION SELECT * FROM gallery2 WHERE topic_id="1093068" UNION SELECT * FROM gallery2 WHERE topic_id="1282530" UNION SELECT * FROM gallery2 WHERE topic_id="770837" UNION SELECT * FROM gallery2 WHERE topic_id="1041498"