A tragedy has a main protagonist who has a harmartia (a fatal flaw) which causes their downfall. The act of the tragedy has to be fast, usually ending with one or more sudden deaths. The main...
In figurative usage, as for example, like in a Greek tregedy the implication is that the tragic (sad) outcome is an inevitable result of the key character's personal flaws. He or she was 'doomed' to...
parents not statically known (the class may have parent classes in the system that can be inferred but are not stated statically) and permanent (for attributes)