SQL
AخA
select c.cl_from, c.cl_to, c.cl_sortkey_prefix, p.page_id, p.page_title, p.page_namespace
from categorylinks c
join page p on c.cl_from = p.page_id
where c.cl_to like "Wikipedia_pages_about_contentious_topics" and c.cl_sortkey_prefix like "2%"
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