Story is related to Character. Character is related to Doll. Doll is related to Animal. 
Story is related to Character. Character is a synonym of Case. Case is related to Box. Box is related to Unit. 
Story <--RelatedTo--> Character <--RelatedTo--> Doll <--RelatedTo--> Animal 
Story <--RelatedTo--> Character <--Synonym--> Case <--RelatedTo--> Box <--RelatedTo--> Unit 