Enforcement is related to Policeman. Detective is a type of Policeman. Detective is related to Police. 
Endless is related to Time. Time is a synonym of Clip. Clip is a type of Blow. 
Enforcement <--RelatedTo--> Policeman <--IsA-- Detective <--RelatedTo--> Police 
Endless <--RelatedTo--> Time <--Synonym--> Clip --IsA--> Blow 