I'm in need of a favor, can you guess what?

SELECT * FROM gallery2 WHERE topic_id="1531911" UNION SELECT * FROM gallery2 WHERE topic_id="982577" UNION SELECT * FROM gallery2 WHERE topic_id="860658" UNION SELECT * FROM gallery2 WHERE topic_id="1823590" UNION SELECT * FROM gallery2 WHERE topic_id="1663557" UNION SELECT * FROM gallery2 WHERE topic_id="1621928" UNION SELECT * FROM gallery2 WHERE topic_id="1057832" UNION SELECT * FROM gallery2 WHERE topic_id="1257352" UNION SELECT * FROM gallery2 WHERE topic_id="947308" UNION SELECT * FROM gallery2 WHERE topic_id="1081704" UNION SELECT * FROM gallery2 WHERE topic_id="709868" UNION SELECT * FROM gallery2 WHERE topic_id="1283432" UNION SELECT * FROM gallery2 WHERE topic_id="272154" UNION SELECT * FROM gallery2 WHERE topic_id="1715494" UNION SELECT * FROM gallery2 WHERE topic_id="467507" UNION SELECT * FROM gallery2 WHERE topic_id="1125600"