Economist is derived from Economy. Economist is a type of Newspaper. Province is an instance of Newspaper. Province is similar to County. 
Express is related to Rapid. Rapid is related to Rabbit. Rabbit is related to Lucky. Lucky is a synonym of Happy. 
Economy <--DerivedFrom-- Economist --IsA--> Newspaper <--InstanceOf-- Province <--SimilarTo--> County 
Express <--RelatedTo--> Rapid <--RelatedTo--> Rabbit <--RelatedTo--> Lucky <--Synonym--> Happy 