A play is a form of literature written for the theater. It uses dialogue between characters to tell a story involving conflicts and tensions. Plays are divided into acts and scenes for dramatic effect. Playwrights express ideas and emotions through their characters. Elements of a play include the plot, characters, dialogue, setting, conflict, and resolution. Common types of plays are tragedies, comedies, domestic plays, tragicomedies, and melodramas. Examples given are Macbeth, Oedipus Rex, and The Merchant of Venice. Plays function to reveal thoughts through live performance and help audiences understand characters and events.