ChitChat: Guided Grammatical Conversation in a Foreign Language

ChitChat is a kind of expert system shell focused on teaching grammatical aspects of foreign languages. It enables a learner to engage in conversational dialogues with the program providing grammatical guidance. It is actually a shell program, in the sense of an expert system shell, in that it depends on content rules provided by the instructor. In ChitChat the rules are definite clause grammar rules for the target language.