Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6611001
Is Reference of Macidado-es#Sense
Relleno-es#Sense
Filling material-en#Sense
Back filling-en#Sense
Stowed goaf-en#Sense
Backfill-en#Sense
Stowing-en#Sense
Stowing material-en#Sense