Research is related to Discover. Discover is a synonym of Expose. Bench is a type of Expose. 
Gay is the opposite of Closet. you are likely to find Closet in/at/on House. you are likely to find Apple in/at/on House. Apple is related to Important. 
Research <--RelatedTo--> Discover <--Synonym--> Expose <--IsA-- Bench 
Gay <--Antonym--> Closet --AtLocation--> House <--AtLocation-- Apple <--RelatedTo--> Important 