Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Oleifazzione-it#Sense
Oljeutvinning-sv#Sense
Oléifaction-fr#Sense
Oleotecnia-es#Sense
Oliefremstilling-da#Sense
Olie-extractie-nl#Sense
Elayotecnia-es#Sense
Ölgewinnung-de#Sense
Ελαιοτεχνία-el#Sense
Olieindvinding-da#Sense