Expansion is the opposite of Reduction. Reduction is the opposite of Growth. 
Door is a type of Entrance. you are likely to find Door in/at/on Theater. you are likely to find Human in/at/on Theater. Police is a type of Human. 
Expansion <--Antonym--> Reduction <--Antonym--> Growth 
Entrance <--IsA-- Door --AtLocation--> Theater <--AtLocation-- Human <--IsA-- Police 