nani o benkyoo shita no
nani o benkyoo shita no ?
n a n i WORD_BOUNDARY o WORD_BOUNDARY b e n kʲ oː WORD_BOUNDARY ʃ i t a WORD_BOUNDARY n o WORD_BOUNDARY
n a n i WORD_BOUNDARY o WORD_BOUNDARY b e n k y o o WORD_BOUNDARY s h i t a WORD_BOUNDARY n o WORD_BOUNDARY