Tunnel is related to Road. Road is related to General. General is related to Official. 
Violation is a type of Situation. Situation is related to Ideal. Ideal is the opposite of Filter. 
Tunnel <--RelatedTo--> Road <--RelatedTo--> General <--RelatedTo--> Official 
Violation --IsA--> Situation <--RelatedTo--> Ideal <--Antonym--> Filter 