Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Tonnenleger-de#Sense
Buoy tender-en#Sense
Bojentender-de#Sense
Baliseur-fr#Sense
Posaboe-it#Sense
Betonningsvaartuig-nl#Sense
Nave per la posa di segnali-it#Sense