Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Hardheid-nl#Sense
Σκληρότητα-el#Sense
Dureza-pt#Sense
Hårdhed-da#Sense
Kovuus-fi#Sense
Cruas-ga#Sense
Hårdhet-sv#Sense
Dureza-es#Sense
Dureté-fr#Sense
Kõvadus-et#Sense
Durezza-it#Sense
Trdota-sl#Sense
Hardness-en#Sense
Härte-de#Sense