you are likely to find Audience in/at/on School. you are likely to find Room in/at/on School. you are likely to find Pillow in/at/on Room. Pillow is related to Bed. 
Choose is related to Decision. Decision is related to Choice. Election is a type of Choice. Election is related to Presidential. 
Audience --AtLocation--> School <--AtLocation-- Room <--AtLocation-- Pillow <--RelatedTo--> Bed 
Choose <--RelatedTo--> Decision <--RelatedTo--> Choice <--IsA-- Election <--RelatedTo--> Presidential 