Competitor is a synonym of Opponent. Opponent is the opposite of Friend. Friend is related to Relationship. 
Look is a synonym of Expression. Action is a type of Expression. Driving is a type of Action. 
Competitor <--Synonym--> Opponent <--Antonym--> Friend <--RelatedTo--> Relationship 
Look <--Synonym--> Expression <--IsA-- Action <--IsA-- Driving 