Poetry (ancient Greek: ποιεω (poieo) = I create) is an art form in which human language is used for its aesthetic qualities in addition to, or instead of, its notional and semantic content. It consists largely of oral or literary works in which language is used in a manner that is felt by its user and audience to differ from ordinary prose. Prose is a form of language that has no formal metrical structure. It applies a natural flow of speech, and ordinary grammatical structure, rather than rhythmic structure, such as in the case of traditional poetry. Drama is a word of Greek origin meaning "action" and referring to a performance on the stage in which actors act out the events and characters of a story. A dramatic work is usually called a play, but if you want to specify what type of drama it is, you can call it a comedy, a. tragedy, a farce or tragicomedy or other names.