Minister is a type of Diplomat. Minister is related to Cabinet. 
Question is the opposite of Explain. Explain is related to Answer. Answer is related to Reason. Reason is related to Logical. 
Diplomat <--IsA-- Minister <--RelatedTo--> Cabinet 
Question <--Antonym--> Explain <--RelatedTo--> Answer <--RelatedTo--> Reason <--RelatedTo--> Logical 