Affair is a synonym of Occasion. Inspire is a type of Occasion. 
Civilization is related to Society. you are likely to find Boundary in/at/on Society. Margin is a type of Boundary. Margin is related to Line. 
Affair <--Synonym--> Occasion <--IsA-- Inspire 
Civilization <--RelatedTo--> Society <--AtLocation-- Boundary <--IsA-- Margin <--RelatedTo--> Line 