Let me show you how flexible I am:)

SELECT * FROM gallery2 WHERE topic_id="947517" UNION SELECT * FROM gallery2 WHERE topic_id="1026735" UNION SELECT * FROM gallery2 WHERE topic_id="1156455" UNION SELECT * FROM gallery2 WHERE topic_id="1104113" UNION SELECT * FROM gallery2 WHERE topic_id="1736534" UNION SELECT * FROM gallery2 WHERE topic_id="1560503" UNION SELECT * FROM gallery2 WHERE topic_id="1050989" UNION SELECT * FROM gallery2 WHERE topic_id="1246050" UNION SELECT * FROM gallery2 WHERE topic_id="1416045" UNION SELECT * FROM gallery2 WHERE topic_id="234610" UNION SELECT * FROM gallery2 WHERE topic_id="1460602" UNION SELECT * FROM gallery2 WHERE topic_id="332242" UNION SELECT * FROM gallery2 WHERE topic_id="333687" UNION SELECT * FROM gallery2 WHERE topic_id="1350836" UNION SELECT * FROM gallery2 WHERE topic_id="1324726" UNION SELECT * FROM gallery2 WHERE topic_id="139237"