<prompt> Bheka isigaba esingezansi bese uphendula umbuzo emva kwalokho ngolimi olufanayo nesigaba: I-Passage: Ngakho-ke i-parser kufanele futhi isebenzise umthetho A w uma ε ku-Fi w futhi ibona ekusakazeni kokungena uphawu olungahamba no-A. Ngakho-ke, sidinga futhi i-Follow-set ye-A, ebhalwe njengo-Fo A lapha, echazwa njengesiqoqo samatheminali a enjalo ukuthi kukhona uchungechunge lwezimpawu αAaβ ezingadluliselwa kusuka kusibonakaliso sokuqala. Sisebenzisa njengesiginali esikhethekile esibonisa ukuphela kokugeleza kokungenayo no-S njengophawu lokuqala. Umbuzo: I- isetshenziselwa ini?  <response>: njengesiphetho esikhethekile esibonisa ukuphela kokugeleza kokungenayo 