Mechanism is related to Bolt. Bolt is the opposite of Nail. Nail is a synonym of Collar. 
Regard is a synonym of View. View is related to Tv. Tv is a synonym of Box. 
Mechanism <--RelatedTo--> Bolt <--Antonym--> Nail <--Synonym--> Collar 
Regard <--Synonym--> View <--RelatedTo--> Tv <--Synonym--> Box 