Bomb is related to Enemy. Enemy is related to Opponent. Opponent is a synonym of Opposition. Opposition is a type of Party. 
Win is related to Swim. Swim is the opposite of Flying. 
Bomb <--RelatedTo--> Enemy <--RelatedTo--> Opponent <--Synonym--> Opposition --IsA--> Party 
Win <--RelatedTo--> Swim <--Antonym--> Flying 