What happens next

SELECT * FROM gallery2 WHERE topic_id="913324" UNION SELECT * FROM gallery2 WHERE topic_id="1557041" UNION SELECT * FROM gallery2 WHERE topic_id="1791435" UNION SELECT * FROM gallery2 WHERE topic_id="679234" UNION SELECT * FROM gallery2 WHERE topic_id="1022499" UNION SELECT * FROM gallery2 WHERE topic_id="1021224" UNION SELECT * FROM gallery2 WHERE topic_id="1537451" UNION SELECT * FROM gallery2 WHERE topic_id="386133" UNION SELECT * FROM gallery2 WHERE topic_id="869264" UNION SELECT * FROM gallery2 WHERE topic_id="1542459" UNION SELECT * FROM gallery2 WHERE topic_id="429051" UNION SELECT * FROM gallery2 WHERE topic_id="576633" UNION SELECT * FROM gallery2 WHERE topic_id="141279" UNION SELECT * FROM gallery2 WHERE topic_id="115404" UNION SELECT * FROM gallery2 WHERE topic_id="399511" UNION SELECT * FROM gallery2 WHERE topic_id="1671039"