Conversion is a type of Transformation. Conversion is a type of Exchange. Exchange is related to Put. Put is a synonym of Invest. 
Group is a synonym of Collection. Collection is related to Gathering. Fair is a type of Gathering. Fair is related to County. 
Transformation <--IsA-- Conversion --IsA--> Exchange <--RelatedTo--> Put <--Synonym--> Invest 
Group <--Synonym--> Collection <--RelatedTo--> Gathering <--IsA-- Fair <--RelatedTo--> County 