Restaurant have Bathroom. you are likely to find Bathroom in/at/on Theater. Theater is related to Costume. 
Pour is the opposite of Drop. Drop is a synonym of Spend. Invest is a type of Spend. Invest is a synonym of Put. 
Restaurant --HasA--> Bathroom --AtLocation--> Theater <--RelatedTo--> Costume 
Pour <--Antonym--> Drop <--Synonym--> Spend <--IsA-- Invest <--Synonym--> Put 