Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/3606
Is Reference of Acquitrino a scorrimento sotterraneo-it#Sense
Sub-surface flow reed bed-en#Sense
Roselière sub-surfacique-fr#Sense
Rietveld met ondergrondse stroming-nl#Sense