Open is a type of Tournament. Open is a synonym of Unfold. Unfold is the opposite of Fold. 
Korean is a type of Human. you are likely to find Human in/at/on Boat. you are likely to find Party in/at/on Boat. 
Tournament <--IsA-- Open <--Synonym--> Unfold <--Antonym--> Fold 
Korean --IsA--> Human --AtLocation--> Boat <--AtLocation-- Party 