ookina nani ga atta no
ookina nani ga atta no ?
oː k i n a WORD_BOUNDARY n a n i WORD_BOUNDARY g a WORD_BOUNDARY a t t a WORD_BOUNDARY n o WORD_BOUNDARY
o o k i n a WORD_BOUNDARY n a n i WORD_BOUNDARY g a WORD_BOUNDARY a t t a WORD_BOUNDARY n o WORD_BOUNDARY