you are likely to find Elevator in/at/on Apartment. you are likely to find Elevator in/at/on Hotel. Hotel is related to Guest. Guest is related to Number. 
Excuse is related to School. School is a type of Education. Education is related to Test. Test is a synonym of Screen. 
Apartment <--AtLocation-- Elevator --AtLocation--> Hotel <--RelatedTo--> Guest <--RelatedTo--> Number 
Excuse <--RelatedTo--> School --IsA--> Education <--RelatedTo--> Test <--Synonym--> Screen 