Suspicious wikilinks to surname pages

SQL

SET STATEMENT max_statement_time = 60 FOR
SELECT Pt.page_title, pl_from_namespace, Pf.page_title
FROM templatelinks
JOIN page Pt ON page_namespace = 0 AND page_id = tl_from /* Surname linked to */
JOIN pagelinks PL ON pl_namespace = 0 AND pl_title = Pt.page_title
JOIN page Pf ON Pf.page_id = PL.pl_from /* Page linked from */
WHERE tl_namespace = 10 AND tl_title = "Surname"
AND pl_from_namespace IN (0,6,10,14,100,828) 
AND page_title LIKE "Ant%" AND pl_title LIKE "Ant%"
AND NOT EXISTS (SELECT 1 FROM categorylinks WHERE cl_from = PL.pl_from AND cl_to = "Surnames")
AND NOT EXISTS (SELECT 1 FROM templatelinks WHERE tl_from = PL.pl_from AND tl_namespace = 10 AND tl_title = "Surname")
AND NOT EXISTS (SELECT 1 FROM templatelinks WHERE tl_from = PL.pl_from AND tl_namespace = 10 AND tl_title = "All_disambiguation_pages")
AND NOT EXISTS (SELECT 1 FROM templatelinks
                JOIN page ON page_namespace = 10 AND page_title = tl_title
                JOIN pagelinks ON pl_from = page_id AND pl_namespace = 0 AND pl_title = PL.pl_title
                WHERE tl_from = PL.pl_from AND tl_namespace = 10)
ORDER BY Pt.page_title, pl_from_namespace, Pf.page_title
SQL

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