Rhetoric is related to Question. Question is related to Curiosity. Interest is a type of Curiosity. Interest is related to Saving. 
Store is related to Save. Save is related to Bank. 
Rhetoric <--RelatedTo--> Question <--RelatedTo--> Curiosity <--IsA-- Interest <--RelatedTo--> Saving 
Store <--RelatedTo--> Save <--RelatedTo--> Bank 