Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of GBL-it#Sense
Gammabutirrolattone-it#Sense
Gammabutyrolactone-fr#Sense
Gamma-butyro-lactone-en#Sense
GBL-fr#Sense
GBL-en#Sense