Reliable is a synonym of Sure. Sure is related to Promise. Promise is related to Cross. 
Bare is a type of Uncover. Bare is the opposite of Full. Full is a type of Beat. 
Reliable <--Synonym--> Sure <--RelatedTo--> Promise <--RelatedTo--> Cross 
Uncover <--IsA-- Bare <--Antonym--> Full --IsA--> Beat 