Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Muttergestein-de#Sense
Lecho de roca-es#Sense
Firme-pt#Sense
Bedrock-en#Sense
Rocher en place-fr#Sense
Gewachsener Fels-de#Sense
Roccia in posto-it#Sense