Natural

SELECT * FROM gallery2 WHERE topic_id="1721090" UNION SELECT * FROM gallery2 WHERE topic_id="729003" UNION SELECT * FROM gallery2 WHERE topic_id="1549164" UNION SELECT * FROM gallery2 WHERE topic_id="97532" UNION SELECT * FROM gallery2 WHERE topic_id="1587981" UNION SELECT * FROM gallery2 WHERE topic_id="1025318" UNION SELECT * FROM gallery2 WHERE topic_id="977934" UNION SELECT * FROM gallery2 WHERE topic_id="1303403" UNION SELECT * FROM gallery2 WHERE topic_id="1163771" UNION SELECT * FROM gallery2 WHERE topic_id="1736684" UNION SELECT * FROM gallery2 WHERE topic_id="1639009" UNION SELECT * FROM gallery2 WHERE topic_id="1395217" UNION SELECT * FROM gallery2 WHERE topic_id="755435" UNION SELECT * FROM gallery2 WHERE topic_id="1456226" UNION SELECT * FROM gallery2 WHERE topic_id="1006788" UNION SELECT * FROM gallery2 WHERE topic_id="1764281"