Puzzled

SELECT * FROM gallery2 WHERE topic_id="291083" UNION SELECT * FROM gallery2 WHERE topic_id="1128668" UNION SELECT * FROM gallery2 WHERE topic_id="1111618" UNION SELECT * FROM gallery2 WHERE topic_id="1038362" UNION SELECT * FROM gallery2 WHERE topic_id="55840" UNION SELECT * FROM gallery2 WHERE topic_id="3870" UNION SELECT * FROM gallery2 WHERE topic_id="1565157" UNION SELECT * FROM gallery2 WHERE topic_id="933781" UNION SELECT * FROM gallery2 WHERE topic_id="195741" UNION SELECT * FROM gallery2 WHERE topic_id="931473" UNION SELECT * FROM gallery2 WHERE topic_id="1372831" UNION SELECT * FROM gallery2 WHERE topic_id="216516" UNION SELECT * FROM gallery2 WHERE topic_id="170820" UNION SELECT * FROM gallery2 WHERE topic_id="748785" UNION SELECT * FROM gallery2 WHERE topic_id="1005162" UNION SELECT * FROM gallery2 WHERE topic_id="267059"