Owner is a type of Businessman. Businessman is related to Merchant. Merchant is related to Vendor. 
Minister is a type of Human. Minister is related to English. English is related to Post. Post is related to Service. 
Owner --IsA--> Businessman <--RelatedTo--> Merchant <--RelatedTo--> Vendor 
Human <--IsA-- Minister <--RelatedTo--> English <--RelatedTo--> Post <--RelatedTo--> Service 