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This query is marked as a draft
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Tacsipacsi
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Subcategories of [[c:Category:Railway_stations_in_the_canton_of_Lucerne]] that contain no geocoded images.
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SQL
SELECT CONCAT('Category:', page_title) AS category_title FROM categorylinks INNER JOIN page ON cl_from = page_id WHERE cl_to = 'Railway_stations_in_the_canton_of_Lucerne' AND cl_type = 'subcat' AND ( SELECT cl1.cl_from FROM categorylinks AS cl1 JOIN categorylinks AS cl2 ON cl1.cl_from = cl2.cl_from WHERE cl1.cl_to = page_title AND cl2.cl_to = 'Pages_with_maps' LIMIT 1 ) IS NULL;
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