Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/5211003
Is Reference of Libertad para tender cables o tuberías submarinos-es#Sense
Vrijheid onderzeese kabels en pijpleidingen te leggen-nl#Sense
Liberté de poser des câbles et des pipe-lines sous-marins-fr#Sense
Freedom to lay submarine cables and pipelines-en#Sense