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(: insert-start :)
declare variable $input-context1 external;
declare variable $input-context2 external;
(: insert-end :)
declare function local:partners($company as xs:string) as element()*
{
let $c := $input-context2//company[name = $company]
return $c//partner
};
for $item in $input-context1//news_item,
$c in $input-context2//company
let $partners := local:partners(exactly-one($c/name))
where contains(string($item), $c/name)
and (some $p in $partners satisfies
contains(string($item), $p) and $item/news_agent != $c/name)
return
$item
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