Pit is a type of Trap. Trap is a type of Hold. Hold is related to Leg. 
Game is a type of Occupation. Game is related to Pass. Pass is the opposite of Hold. 
Pit --IsA--> Trap --IsA--> Hold <--RelatedTo--> Leg 
Occupation <--IsA-- Game <--RelatedTo--> Pass <--Antonym--> Hold 