naka ni ireru n yo
naka ni ireru n yo .
n a k a WORD_BOUNDARY n i WORD_BOUNDARY i r e r ɯ WORD_BOUNDARY n WORD_BOUNDARY j o WORD_BOUNDARY
n a k a WORD_BOUNDARY n i WORD_BOUNDARY i r e r u WORD_BOUNDARY n WORD_BOUNDARY y o WORD_BOUNDARY