Guide is a type of Structure. Guide is related to Lead. Lead is related to Soft. Soft is a synonym of Quiet. 
Puzzle can be used for Challenge. Puzzle is related to Fun. Fun is related to Park. 
Structure <--IsA-- Guide <--RelatedTo--> Lead <--RelatedTo--> Soft <--Synonym--> Quiet 
Challenge <--UsedFor-- Puzzle <--RelatedTo--> Fun <--RelatedTo--> Park 