Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/4821002
Is Reference of Comportamento delle navi in zone limitate-it#Sense
Movement of ships in confined areas-en#Sense
Comportement des navires en eaux resserrées-fr#Sense
Navigation in beengten Fahrwassern-de#Sense