Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6831
Is Reference of Filtergrus-da#Sense
Conduttura di drenaggio con ghiaia filtrante-it#Sense
Filtration gravel-en#Sense
Filtergrind-nl#Sense
Sanddrän-de#Sense
Drain avec graves filtrantes-fr#Sense