nani o shiteta n da
nani o shiteta n da .
n a n i WORD_BOUNDARY o WORD_BOUNDARY ʃ i t e t a WORD_BOUNDARY n WORD_BOUNDARY d a WORD_BOUNDARY
n a n i WORD_BOUNDARY o WORD_BOUNDARY s h i t e t a WORD_BOUNDARY n WORD_BOUNDARY d a WORD_BOUNDARY