Pit is a type of Remove. Remove is the opposite of Settle. Settle is a synonym of Fix. 
Middle is the opposite of Side. Side is related to Left. Left is related to Drive. the first thing you do when you Drive is Walk. 
Pit --IsA--> Remove <--Antonym--> Settle <--Synonym--> Fix 
Middle <--Antonym--> Side <--RelatedTo--> Left <--RelatedTo--> Drive --HasFirstSubevent--> Walk 