Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Luftblære-da#Sense
Aerspás-ga#Sense
Câmara de ar-pt#Sense
Luftkammer-de#Sense
Air space-en#Sense
Chambre à air-fr#Sense
Camera d'aria-it#Sense
Luchtkamer-nl#Sense