Hypothetically

SELECT * FROM gallery2 WHERE topic_id="1525592" UNION SELECT * FROM gallery2 WHERE topic_id="1467027" UNION SELECT * FROM gallery2 WHERE topic_id="227862" UNION SELECT * FROM gallery2 WHERE topic_id="655791" UNION SELECT * FROM gallery2 WHERE topic_id="468891" UNION SELECT * FROM gallery2 WHERE topic_id="1253196" UNION SELECT * FROM gallery2 WHERE topic_id="1183798" UNION SELECT * FROM gallery2 WHERE topic_id="596071" UNION SELECT * FROM gallery2 WHERE topic_id="658527" UNION SELECT * FROM gallery2 WHERE topic_id="1149891" UNION SELECT * FROM gallery2 WHERE topic_id="50082" UNION SELECT * FROM gallery2 WHERE topic_id="827118" UNION SELECT * FROM gallery2 WHERE topic_id="1058421" UNION SELECT * FROM gallery2 WHERE topic_id="1553564" UNION SELECT * FROM gallery2 WHERE topic_id="93643" UNION SELECT * FROM gallery2 WHERE topic_id="1201996"