nani itteru aaan tte
nani itteru aaan tte .
n a n i WORD_BOUNDARY i t t e r ɯ WORD_BOUNDARY aː a n WORD_BOUNDARY t t e WORD_BOUNDARY
n a n i WORD_BOUNDARY i t t e r u WORD_BOUNDARY a a a n WORD_BOUNDARY t t e WORD_BOUNDARY