Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Manche d'alimentation principale-fr#Sense
Linha principal de gás-pt#Sense
Gasleitung-de#Sense
Kaasujohto-fi#Sense
Centrale vulleiding-nl#Sense
Conduttura principale del gas-it#Sense
Canalización principal de gas-es#Sense
Gasledning-da#Sense
Gas main-en#Sense