class is in session

SELECT * FROM gallery2 WHERE topic_id="2539" UNION SELECT * FROM gallery2 WHERE topic_id="1493396" UNION SELECT * FROM gallery2 WHERE topic_id="1742249" UNION SELECT * FROM gallery2 WHERE topic_id="868034" UNION SELECT * FROM gallery2 WHERE topic_id="1124332" UNION SELECT * FROM gallery2 WHERE topic_id="1698054" UNION SELECT * FROM gallery2 WHERE topic_id="933507" UNION SELECT * FROM gallery2 WHERE topic_id="553423" UNION SELECT * FROM gallery2 WHERE topic_id="1601725" UNION SELECT * FROM gallery2 WHERE topic_id="673092" UNION SELECT * FROM gallery2 WHERE topic_id="166009" UNION SELECT * FROM gallery2 WHERE topic_id="327106" UNION SELECT * FROM gallery2 WHERE topic_id="1215019" UNION SELECT * FROM gallery2 WHERE topic_id="1823432" UNION SELECT * FROM gallery2 WHERE topic_id="1591165" UNION SELECT * FROM gallery2 WHERE topic_id="508790"