Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Gegenspant-de#Sense
Kontraspant-da#Sense
Reversed frame-en#Sense
Contre-membrure-fr#Sense
Keerspant-nl#Sense
Ανεστραμμένος νομέας-el#Sense