Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Signal avertisseur-fr#Sense
Vorsignal-de#Sense
Försignal-sv#Sense
Προειδοποιητικό σήμα-el#Sense
Señal avanzada-es#Sense
Fremskudt signal-da#Sense
Sinal avançado-pt#Sense
Oploop voorwaarschuwing-nl#Sense
Esiopastin-fi#Sense
Segnale di preavviso-it#Sense
Ennakkovaroitusmerkki-fi#Sense
Aankomst voorwaarschuwing-nl#Sense
Comhartha ascnaimh-ga#Sense
Signal avancé-fr#Sense
Approach signal-en#Sense