Come get lost in my forest

SELECT * FROM gallery2 WHERE topic_id="1177180" UNION SELECT * FROM gallery2 WHERE topic_id="1212502" UNION SELECT * FROM gallery2 WHERE topic_id="208272" UNION SELECT * FROM gallery2 WHERE topic_id="15498" UNION SELECT * FROM gallery2 WHERE topic_id="207495" UNION SELECT * FROM gallery2 WHERE topic_id="439753" UNION SELECT * FROM gallery2 WHERE topic_id="710854" UNION SELECT * FROM gallery2 WHERE topic_id="505855" UNION SELECT * FROM gallery2 WHERE topic_id="1647940" UNION SELECT * FROM gallery2 WHERE topic_id="444814" UNION SELECT * FROM gallery2 WHERE topic_id="49298" UNION SELECT * FROM gallery2 WHERE topic_id="1622507" UNION SELECT * FROM gallery2 WHERE topic_id="1536872" UNION SELECT * FROM gallery2 WHERE topic_id="668075" UNION SELECT * FROM gallery2 WHERE topic_id="1060435" UNION SELECT * FROM gallery2 WHERE topic_id="245426"