I worked out today.

SELECT * FROM gallery2 WHERE topic_id="1651278" UNION SELECT * FROM gallery2 WHERE topic_id="1721885" UNION SELECT * FROM gallery2 WHERE topic_id="830552" UNION SELECT * FROM gallery2 WHERE topic_id="1536841" UNION SELECT * FROM gallery2 WHERE topic_id="1253758" UNION SELECT * FROM gallery2 WHERE topic_id="1513274" UNION SELECT * FROM gallery2 WHERE topic_id="1229136" UNION SELECT * FROM gallery2 WHERE topic_id="325357" UNION SELECT * FROM gallery2 WHERE topic_id="1810450" UNION SELECT * FROM gallery2 WHERE topic_id="1569692" UNION SELECT * FROM gallery2 WHERE topic_id="759266" UNION SELECT * FROM gallery2 WHERE topic_id="1707915" UNION SELECT * FROM gallery2 WHERE topic_id="881271" UNION SELECT * FROM gallery2 WHERE topic_id="906962" UNION SELECT * FROM gallery2 WHERE topic_id="1252119" UNION SELECT * FROM gallery2 WHERE topic_id="1412505"