Man is related to Leader. Commander is a type of Leader. 
Vegetable is related to Mineral. Mineral is related to Metal. Metal is the opposite of Stone. Stone is related to Building. 
Man <--RelatedTo--> Leader <--IsA-- Commander 
Vegetable <--RelatedTo--> Mineral <--RelatedTo--> Metal <--Antonym--> Stone <--RelatedTo--> Building 