TAB is a brand of diet cola, first introduced in 1963 by The Coca-Cola Company. It was the first diet cola to be produced and marketed widely. The name TAB is an acronym for 'totally artificial beverage'. COLA is an abbreviation for 'carbonated soft drink', which is a type of beverage that contains carbon dioxide gas dissolved in it. INDENT is a term used to describe the indentation or indentations made in the surface of a material, such as paper or metal. DIETSODA is a term used to describe a type of soda that is low in calories and sugar, but still has a sweet taste.