Human is a type of Being. Being is related to Profit. Profit is related to Economics. 
Blow is related to Job. Job is related to Lawyer. Prosecutor is a type of Lawyer. 
Human --IsA--> Being <--RelatedTo--> Profit <--RelatedTo--> Economics 
Blow <--RelatedTo--> Job <--RelatedTo--> Lawyer <--IsA-- Prosecutor 