Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6616
Is Reference of Råolie-da#Sense
Pétrole brut-fr#Sense
Råolja-sv#Sense
Petróleo bruto-pt#Sense
Rohöl-de#Sense
Ruwe olie-nl#Sense
Sirova nafta-hr#Sense
Crude oil-en#Sense
Petrolio greggio-it#Sense
Ακάθαρτο πετρέλαιο-el#Sense