you are likely to find Field in/at/on Country. you are likely to find Cemetery in/at/on Field. Cemetery is a type of Site. 
Change can be Constant. Set is a type of Change. Set is a synonym of Appoint. Appoint is related to Office. 
Country <--AtLocation-- Field <--AtLocation-- Cemetery --IsA--> Site 
Constant <--HasProperty-- Change <--IsA-- Set <--Synonym--> Appoint <--RelatedTo--> Office 