Court is part of Building. you are likely to find Person in/at/on Building. Economist is a type of Person. Economist is derived from Economy. 
Metal is a type of Music. Metal is related to Electrical. Electrical is related to Spark. 
Court --PartOf--> Building <--AtLocation-- Person <--IsA-- Economist --DerivedFrom--> Economy 
Music <--IsA-- Metal <--RelatedTo--> Electrical <--RelatedTo--> Spark 