Naked is a different concept from Secure. Secure is a synonym of Strong. Strong is similar to Stiff. Stiff is a type of Man. 
Critical is related to Crisis. Crisis is related to Emergency. Emergency is a synonym of Casualty. Casualty is a type of Victim. 
Naked <--DistinctFrom--> Secure <--Synonym--> Strong <--SimilarTo--> Stiff --IsA--> Man 
Critical <--RelatedTo--> Crisis <--RelatedTo--> Emergency <--Synonym--> Casualty --IsA--> Victim 