SELECT DISTINCT main.page_id AS main_page_id, ll.ll_lang

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FROM page AS p

LEFT JOIN categorylinks AS cl ON cl.cl_from = p.page_id

LEFT JOIN page AS main ON main.page_namespace = 0 AND main.page_title = p.page_title

LEFT JOIN langlinks AS ll ON main.page_id = ll.ll_from

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WHERE cl.cl_to IN ('Top-priority_mathematics_articles',

                   'High-priority_mathematics_articles',

                   'Mid-priority_mathematics_articles',

                   'Low-priority_mathematics_articles')

LIMIT 5;

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