Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6831
Is Reference of Verbeterde ondergrond-nl#Sense
Subgrade-en#Sense
Fond de forme-fr#Sense
Strato letto-it#Sense
Underbygning-da#Sense
Explanada mejorada-es#Sense
Bodenplanum-de#Sense