Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Respiradero-es#Sense
Ausgleichsöffnung-de#Sense
Ontluchting-nl#Sense
Poisto-fi#Sense
Ventilationsöppning-sv#Sense
Trykudligningsport-da#Sense
Οπή αερισμού-el#Sense
Évent-fr#Sense
Vent-en#Sense