code cards
type: Concept
preferred label: aktivkort @sv
preferred label: tietokortit @fi
related: keys

technical object
type: Concept
narrower: keys
preferred label: tekniskt objekt @sv
preferred label: tekninen objekti @fi

locks
type: Concept
preferred label: lås @sv
preferred label: lukot @fi
related: keys

keys
type: Concept
broader: technical object
in scheme: conceptscheme
preferred label: nycklar @sv
preferred label: avaimet @fi
related: shutters
related: locks
related: code cards

shutters
type: Concept
preferred label: sulkimet @fi
preferred label: tillslutare @sv
related: keys