Query for MS (2)

SQL

use fawiki_p;
select page_title
from page
join categorylinks c1
  on page_id = c1.cl_from
  and c1.cl_to = 'اهالی_برزیل'
join categorylinks c2
  on page_id = c2.cl_from
  and c2.cl_to = 'مهاجمان_فوتبال'
union
select p1.page_title
from page p1
join categorylinks c1
  on p1.page_id = c1.cl_from
  and c1.cl_to = 'مهاجمان_فوتبال'
join categorylinks c2
  on p1.page_id = c2.cl_from
join page p2
  on p2.page_title = c2.cl_to
  and p2.page_namespace = 14 -- Category
join categorylinks c3
  on p2.page_id = c3.cl_from
  and c3.cl_to = 'اهالی_برزیل'
union
select p1.page_title
from page p1
join categorylinks c1
  on p1.page_id = c1.cl_from
  and c1.cl_to = 'مهاجمان_فوتبال'
join categorylinks c2
  on p1.page_id = c2.cl_from
join page p2
  on p2.page_title = c2.cl_to
  and p2.page_namespace = 14 -- Category
join categorylinks c3
  on p2.page_id = c3.cl_from
join page p3
  on p3.page_title = c3.cl_to
  and p3.page_namespace = 14 -- Category
join categorylinks c4
  on p3.page_id = c4.cl_from
  and c4.cl_to = 'اهالی_برزیل'
SQL

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