Sock is a synonym of Belt. Belt is related to Skirt. Skirt is a synonym of Surround. Surround is related to Coast. 
Inspector is a type of Policeman. Policeman is related to Formal. Formal is related to Theory. 
Sock <--Synonym--> Belt <--RelatedTo--> Skirt <--Synonym--> Surround <--RelatedTo--> Coast 
Inspector --IsA--> Policeman <--RelatedTo--> Formal <--RelatedTo--> Theory 