Choice of five.

SELECT * FROM gallery2 WHERE topic_id="334436" UNION SELECT * FROM gallery2 WHERE topic_id="513898" UNION SELECT * FROM gallery2 WHERE topic_id="1769823" UNION SELECT * FROM gallery2 WHERE topic_id="1408571" UNION SELECT * FROM gallery2 WHERE topic_id="346952" UNION SELECT * FROM gallery2 WHERE topic_id="68620" UNION SELECT * FROM gallery2 WHERE topic_id="1671699" UNION SELECT * FROM gallery2 WHERE topic_id="791663" UNION SELECT * FROM gallery2 WHERE topic_id="412198" UNION SELECT * FROM gallery2 WHERE topic_id="1456651" UNION SELECT * FROM gallery2 WHERE topic_id="955542" UNION SELECT * FROM gallery2 WHERE topic_id="1457016" UNION SELECT * FROM gallery2 WHERE topic_id="729997" UNION SELECT * FROM gallery2 WHERE topic_id="1812773" UNION SELECT * FROM gallery2 WHERE topic_id="695406" UNION SELECT * FROM gallery2 WHERE topic_id="353212"