Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Espacio cerrado-es#Sense
Espace confiné-fr#Sense
Lukket rum-da#Sense
Confined space-en#Sense
Espaço confinado-pt#Sense
Spazio confinato-it#Sense
Geschlossener Raum-de#Sense
Besloten ruimte-nl#Sense
Κλειστός χώρος-el#Sense