Format is a type of Appearance. Format is part of Publication. 
Choice is a synonym of Possibility. Potential is a type of Possibility. Potential is the opposite of Actual. Actual is related to Truth. 
Appearance <--IsA-- Format --PartOf--> Publication 
Choice <--Synonym--> Possibility <--IsA-- Potential <--Antonym--> Actual <--RelatedTo--> Truth 