for $item at $i in doc("./corpus-titre-description.udpipe-3234.xml")//p/item
where $item/a[4] = 'NOUN' and $item/following-sibling::item[1]/a[4] = 'ADJ'
let $patron := string-join(($item/a[2], $item/following-sibling::item[1]/a[2])," ")
return $patron