Charge is a type of Attack. Attack is the opposite of Retreat. Retreat is related to Turn. Bottom is a type of Turn. 
Inmate is similar to Prisoner. Hostage is a type of Prisoner. 
Charge --IsA--> Attack <--Antonym--> Retreat <--RelatedTo--> Turn <--IsA-- Bottom 
Inmate <--SimilarTo--> Prisoner <--IsA-- Hostage 