Chain can be used for Security. Chain is a type of Unit. Unit is related to Degree. 
Dog is related to Roll. Roll is related to Sauce. Sauce is related to Red. Red is related to Mark. 
Security <--UsedFor-- Chain --IsA--> Unit <--RelatedTo--> Degree 
Dog <--RelatedTo--> Roll <--RelatedTo--> Sauce <--RelatedTo--> Red <--RelatedTo--> Mark 