Doll is related to Form. Block is a type of Form. 
Legislation is a type of Government. Legislation is related to Bill. Bill is related to One. One is related to Toy. 
Doll <--RelatedTo--> Form <--IsA-- Block 
Government <--IsA-- Legislation <--RelatedTo--> Bill <--RelatedTo--> One <--RelatedTo--> Toy 