Excluding the criteria of medium, Aristotle's system distinguished four types of classical genres: tragedy (superior-dramatic dialogue), epic (superior-mixed narrative), comedy (inferior-dramatic dialogue), and parody (inferior-mixed narrative). Genette continues by explaining the later integration of lyric poetry into the classical system during the romantic period, replacing the now removed pure narrative mode. Lyric poetry, once considered non-mimetic, was deemed to imitate feelings, becoming the third leg of a new tripartite system: lyrical, epical, and dramatic dialogue. This system, which came to "dominate all the literary theory of German romanticism (and therefore well beyond)…" (38), has seen numerous attempts at expansion or revision. However, more ambitious efforts to expand the tripartite system resulted in new taxonomic systems of increasing scope and complexity.