Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Gültigkeitsdauer-de#Sense
Gyldighedsperiode-da#Sense
Geldigheidsduur-nl#Sense
Period of validity-en#Sense
Durée de validité-fr#Sense
Période de validité-fr#Sense
Periodo di validità-it#Sense
Período de validez-es#Sense
Giltighetstid-sv#Sense
Voimassaoloaika-fi#Sense
Tréimhse bhailíochta-ga#Sense