"CHATFIELD SOFTWARE, INC.", "Education - Language", "POETRIO 1.0", "CSPT", "04-07-91", "Three poetry tutorials with verse editors.", "PoeTrio derives its name from the fact that it is a trio of educati onal poetry programs: one for free verse (CATALYST), one for syllab ics (HAIKUKU), and one for an original verseform called the CANTONA . Each of the three programs has its own verse editor. "