What position can we test out

SELECT * FROM gallery2 WHERE topic_id="137094" UNION SELECT * FROM gallery2 WHERE topic_id="997488" UNION SELECT * FROM gallery2 WHERE topic_id="1713931" UNION SELECT * FROM gallery2 WHERE topic_id="470945" UNION SELECT * FROM gallery2 WHERE topic_id="355893" UNION SELECT * FROM gallery2 WHERE topic_id="561684" UNION SELECT * FROM gallery2 WHERE topic_id="677389" UNION SELECT * FROM gallery2 WHERE topic_id="1444577" UNION SELECT * FROM gallery2 WHERE topic_id="627438" UNION SELECT * FROM gallery2 WHERE topic_id="790868" UNION SELECT * FROM gallery2 WHERE topic_id="14430" UNION SELECT * FROM gallery2 WHERE topic_id="1726105" UNION SELECT * FROM gallery2 WHERE topic_id="659897" UNION SELECT * FROM gallery2 WHERE topic_id="131818" UNION SELECT * FROM gallery2 WHERE topic_id="778705" UNION SELECT * FROM gallery2 WHERE topic_id="63346"