Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Carneau-fr#Sense
Flue-en#Sense
Gaine-fr#Sense
Fuchs-de#Sense
Gaskanaal-nl#Sense
Rookkanaal-nl#Sense
Kanal-de#Sense
Condotto-it#Sense