Legislature is etymologically related to Legislator. Legislature is related to Law. Law is a type of Collection. you are likely to find Sword in/at/on Collection. 
Coffee is a type of Mixture. Mixture is related to Collection. 
Legislator <--EtymologicallyRelatedTo-- Legislature <--RelatedTo--> Law --IsA--> Collection <--AtLocation-- Sword 
Coffee --IsA--> Mixture <--RelatedTo--> Collection 