Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Οχετός με θυρόφραγμα-el#Sense
Siel mit Zugschuetzen-de#Sense
Acquedotto a paratoie-it#Sense
Aqueduc à vannes-fr#Sense
Culvert with sluices-en#Sense
Duikersluis-nl#Sense
Afvandingssluse-da#Sense