helikopter ngung ngung
helikopter ngung ngung .
h ə l i k o p t ə r WORD_BOUNDARY ŋ u ŋ WORD_BOUNDARY ŋ u ŋ WORD_BOUNDARY
h e l i k o p t e r WORD_BOUNDARY n g u n g WORD_BOUNDARY n g u n g WORD_BOUNDARY . WORD_BOUNDARY